diff --git a/src/spavro/fast_binary.c b/src/spavro/fast_binary.c
index d7048e1..d4ac3d5 100644
--- a/src/spavro/fast_binary.c
+++ b/src/spavro/fast_binary.c
@@ -1,8 +1,9 @@
-/* Generated by Cython 0.29.6 */
+/* Generated by Cython 0.29.34 */
 
 /* BEGIN: Cython Metadata
 {
     "distutils": {
+        "depends": [],
         "name": "spavro.fast_binary",
         "sources": [
             "src/spavro/fast_binary.pyx"
@@ -12,15 +13,17 @@
 }
 END: Cython Metadata */
 
+#ifndef PY_SSIZE_T_CLEAN
 #define PY_SSIZE_T_CLEAN
+#endif /* PY_SSIZE_T_CLEAN */
 #include "Python.h"
 #ifndef Py_PYTHON_H
     #error Python headers needed to compile C extensions, please install development version of Python.
 #elif PY_VERSION_HEX < 0x02060000 || (0x03000000 <= PY_VERSION_HEX && PY_VERSION_HEX < 0x03030000)
     #error Cython requires Python 2.6+ or Python 3.3+.
 #else
-#define CYTHON_ABI "0_29_6"
-#define CYTHON_HEX_VERSION 0x001D06F0
+#define CYTHON_ABI "0_29_34"
+#define CYTHON_HEX_VERSION 0x001D22F0
 #define CYTHON_FUTURE_DIVISION 0
 #include <stddef.h>
 #ifndef offsetof
@@ -59,6 +62,7 @@ END: Cython Metadata */
   #define CYTHON_COMPILING_IN_PYPY 1
   #define CYTHON_COMPILING_IN_PYSTON 0
   #define CYTHON_COMPILING_IN_CPYTHON 0
+  #define CYTHON_COMPILING_IN_NOGIL 0
   #undef CYTHON_USE_TYPE_SLOTS
   #define CYTHON_USE_TYPE_SLOTS 0
   #undef CYTHON_USE_PYTYPE_LOOKUP
@@ -95,10 +99,14 @@ END: Cython Metadata */
   #define CYTHON_USE_DICT_VERSIONS 0
   #undef CYTHON_USE_EXC_INFO_STACK
   #define CYTHON_USE_EXC_INFO_STACK 0
+  #ifndef CYTHON_UPDATE_DESCRIPTOR_DOC
+    #define CYTHON_UPDATE_DESCRIPTOR_DOC 0
+  #endif
 #elif defined(PYSTON_VERSION)
   #define CYTHON_COMPILING_IN_PYPY 0
   #define CYTHON_COMPILING_IN_PYSTON 1
   #define CYTHON_COMPILING_IN_CPYTHON 0
+  #define CYTHON_COMPILING_IN_NOGIL 0
   #ifndef CYTHON_USE_TYPE_SLOTS
     #define CYTHON_USE_TYPE_SLOTS 1
   #endif
@@ -136,10 +144,59 @@ END: Cython Metadata */
   #define CYTHON_USE_DICT_VERSIONS 0
   #undef CYTHON_USE_EXC_INFO_STACK
   #define CYTHON_USE_EXC_INFO_STACK 0
+  #ifndef CYTHON_UPDATE_DESCRIPTOR_DOC
+    #define CYTHON_UPDATE_DESCRIPTOR_DOC 0
+  #endif
+#elif defined(PY_NOGIL)
+  #define CYTHON_COMPILING_IN_PYPY 0
+  #define CYTHON_COMPILING_IN_PYSTON 0
+  #define CYTHON_COMPILING_IN_CPYTHON 0
+  #define CYTHON_COMPILING_IN_NOGIL 1
+  #ifndef CYTHON_USE_TYPE_SLOTS
+    #define CYTHON_USE_TYPE_SLOTS 1
+  #endif
+  #undef CYTHON_USE_PYTYPE_LOOKUP
+  #define CYTHON_USE_PYTYPE_LOOKUP 0
+  #ifndef CYTHON_USE_ASYNC_SLOTS
+    #define CYTHON_USE_ASYNC_SLOTS 1
+  #endif
+  #undef CYTHON_USE_PYLIST_INTERNALS
+  #define CYTHON_USE_PYLIST_INTERNALS 0
+  #ifndef CYTHON_USE_UNICODE_INTERNALS
+    #define CYTHON_USE_UNICODE_INTERNALS 1
+  #endif
+  #undef CYTHON_USE_UNICODE_WRITER
+  #define CYTHON_USE_UNICODE_WRITER 0
+  #undef CYTHON_USE_PYLONG_INTERNALS
+  #define CYTHON_USE_PYLONG_INTERNALS 0
+  #ifndef CYTHON_AVOID_BORROWED_REFS
+    #define CYTHON_AVOID_BORROWED_REFS 0
+  #endif
+  #ifndef CYTHON_ASSUME_SAFE_MACROS
+    #define CYTHON_ASSUME_SAFE_MACROS 1
+  #endif
+  #ifndef CYTHON_UNPACK_METHODS
+    #define CYTHON_UNPACK_METHODS 1
+  #endif
+  #undef CYTHON_FAST_THREAD_STATE
+  #define CYTHON_FAST_THREAD_STATE 0
+  #undef CYTHON_FAST_PYCALL
+  #define CYTHON_FAST_PYCALL 0
+  #ifndef CYTHON_PEP489_MULTI_PHASE_INIT
+    #define CYTHON_PEP489_MULTI_PHASE_INIT 1
+  #endif
+  #ifndef CYTHON_USE_TP_FINALIZE
+    #define CYTHON_USE_TP_FINALIZE 1
+  #endif
+  #undef CYTHON_USE_DICT_VERSIONS
+  #define CYTHON_USE_DICT_VERSIONS 0
+  #undef CYTHON_USE_EXC_INFO_STACK
+  #define CYTHON_USE_EXC_INFO_STACK 0
 #else
   #define CYTHON_COMPILING_IN_PYPY 0
   #define CYTHON_COMPILING_IN_PYSTON 0
   #define CYTHON_COMPILING_IN_CPYTHON 1
+  #define CYTHON_COMPILING_IN_NOGIL 0
   #ifndef CYTHON_USE_TYPE_SLOTS
     #define CYTHON_USE_TYPE_SLOTS 1
   #endif
@@ -159,7 +216,7 @@ END: Cython Metadata */
     #undef CYTHON_USE_PYLONG_INTERNALS
     #define CYTHON_USE_PYLONG_INTERNALS 0
   #elif !defined(CYTHON_USE_PYLONG_INTERNALS)
-    #define CYTHON_USE_PYLONG_INTERNALS 1
+    #define CYTHON_USE_PYLONG_INTERNALS (PY_VERSION_HEX < 0x030C00A5)
   #endif
   #ifndef CYTHON_USE_PYLIST_INTERNALS
     #define CYTHON_USE_PYLIST_INTERNALS 1
@@ -167,7 +224,7 @@ END: Cython Metadata */
   #ifndef CYTHON_USE_UNICODE_INTERNALS
     #define CYTHON_USE_UNICODE_INTERNALS 1
   #endif
-  #if PY_VERSION_HEX < 0x030300F0
+  #if PY_VERSION_HEX < 0x030300F0 || PY_VERSION_HEX >= 0x030B00A2
     #undef CYTHON_USE_UNICODE_WRITER
     #define CYTHON_USE_UNICODE_WRITER 0
   #elif !defined(CYTHON_USE_UNICODE_WRITER)
@@ -182,11 +239,14 @@ END: Cython Metadata */
   #ifndef CYTHON_UNPACK_METHODS
     #define CYTHON_UNPACK_METHODS 1
   #endif
-  #ifndef CYTHON_FAST_THREAD_STATE
+  #if PY_VERSION_HEX >= 0x030B00A4
+    #undef CYTHON_FAST_THREAD_STATE
+    #define CYTHON_FAST_THREAD_STATE 0
+  #elif !defined(CYTHON_FAST_THREAD_STATE)
     #define CYTHON_FAST_THREAD_STATE 1
   #endif
   #ifndef CYTHON_FAST_PYCALL
-    #define CYTHON_FAST_PYCALL 1
+    #define CYTHON_FAST_PYCALL (PY_VERSION_HEX < 0x030A0000)
   #endif
   #ifndef CYTHON_PEP489_MULTI_PHASE_INIT
     #define CYTHON_PEP489_MULTI_PHASE_INIT (PY_VERSION_HEX >= 0x03050000)
@@ -195,17 +255,25 @@ END: Cython Metadata */
     #define CYTHON_USE_TP_FINALIZE (PY_VERSION_HEX >= 0x030400a1)
   #endif
   #ifndef CYTHON_USE_DICT_VERSIONS
-    #define CYTHON_USE_DICT_VERSIONS (PY_VERSION_HEX >= 0x030600B1)
+    #define CYTHON_USE_DICT_VERSIONS ((PY_VERSION_HEX >= 0x030600B1) && (PY_VERSION_HEX < 0x030C00A5))
   #endif
-  #ifndef CYTHON_USE_EXC_INFO_STACK
+  #if PY_VERSION_HEX >= 0x030B00A4
+    #undef CYTHON_USE_EXC_INFO_STACK
+    #define CYTHON_USE_EXC_INFO_STACK 0
+  #elif !defined(CYTHON_USE_EXC_INFO_STACK)
     #define CYTHON_USE_EXC_INFO_STACK (PY_VERSION_HEX >= 0x030700A3)
   #endif
+  #ifndef CYTHON_UPDATE_DESCRIPTOR_DOC
+    #define CYTHON_UPDATE_DESCRIPTOR_DOC 1
+  #endif
 #endif
 #if !defined(CYTHON_FAST_PYCCALL)
 #define CYTHON_FAST_PYCCALL  (CYTHON_FAST_PYCALL && PY_VERSION_HEX >= 0x030600B1)
 #endif
 #if CYTHON_USE_PYLONG_INTERNALS
-  #include "longintrepr.h"
+  #if PY_MAJOR_VERSION < 3
+    #include "longintrepr.h"
+  #endif
   #undef SHIFT
   #undef BASE
   #undef MASK
@@ -322,8 +390,72 @@ END: Cython Metadata */
   #define __Pyx_DefaultClassType PyClass_Type
 #else
   #define __Pyx_BUILTIN_MODULE_NAME "builtins"
+  #define __Pyx_DefaultClassType PyType_Type
+#if PY_VERSION_HEX >= 0x030B00A1
+    static CYTHON_INLINE PyCodeObject* __Pyx_PyCode_New(int a, int k, int l, int s, int f,
+                                                    PyObject *code, PyObject *c, PyObject* n, PyObject *v,
+                                                    PyObject *fv, PyObject *cell, PyObject* fn,
+                                                    PyObject *name, int fline, PyObject *lnos) {
+        PyObject *kwds=NULL, *argcount=NULL, *posonlyargcount=NULL, *kwonlyargcount=NULL;
+        PyObject *nlocals=NULL, *stacksize=NULL, *flags=NULL, *replace=NULL, *call_result=NULL, *empty=NULL;
+        const char *fn_cstr=NULL;
+        const char *name_cstr=NULL;
+        PyCodeObject* co=NULL;
+        PyObject *type, *value, *traceback;
+        PyErr_Fetch(&type, &value, &traceback);
+        if (!(kwds=PyDict_New())) goto end;
+        if (!(argcount=PyLong_FromLong(a))) goto end;
+        if (PyDict_SetItemString(kwds, "co_argcount", argcount) != 0) goto end;
+        if (!(posonlyargcount=PyLong_FromLong(0))) goto end;
+        if (PyDict_SetItemString(kwds, "co_posonlyargcount", posonlyargcount) != 0) goto end;
+        if (!(kwonlyargcount=PyLong_FromLong(k))) goto end;
+        if (PyDict_SetItemString(kwds, "co_kwonlyargcount", kwonlyargcount) != 0) goto end;
+        if (!(nlocals=PyLong_FromLong(l))) goto end;
+        if (PyDict_SetItemString(kwds, "co_nlocals", nlocals) != 0) goto end;
+        if (!(stacksize=PyLong_FromLong(s))) goto end;
+        if (PyDict_SetItemString(kwds, "co_stacksize", stacksize) != 0) goto end;
+        if (!(flags=PyLong_FromLong(f))) goto end;
+        if (PyDict_SetItemString(kwds, "co_flags", flags) != 0) goto end;
+        if (PyDict_SetItemString(kwds, "co_code", code) != 0) goto end;
+        if (PyDict_SetItemString(kwds, "co_consts", c) != 0) goto end;
+        if (PyDict_SetItemString(kwds, "co_names", n) != 0) goto end;
+        if (PyDict_SetItemString(kwds, "co_varnames", v) != 0) goto end;
+        if (PyDict_SetItemString(kwds, "co_freevars", fv) != 0) goto end;
+        if (PyDict_SetItemString(kwds, "co_cellvars", cell) != 0) goto end;
+        if (PyDict_SetItemString(kwds, "co_linetable", lnos) != 0) goto end;
+        if (!(fn_cstr=PyUnicode_AsUTF8AndSize(fn, NULL))) goto end;
+        if (!(name_cstr=PyUnicode_AsUTF8AndSize(name, NULL))) goto end;
+        if (!(co = PyCode_NewEmpty(fn_cstr, name_cstr, fline))) goto end;
+        if (!(replace = PyObject_GetAttrString((PyObject*)co, "replace"))) goto cleanup_code_too;
+        if (!(empty = PyTuple_New(0))) goto cleanup_code_too; // unfortunately __pyx_empty_tuple isn't available here
+        if (!(call_result = PyObject_Call(replace, empty, kwds))) goto cleanup_code_too;
+        Py_XDECREF((PyObject*)co);
+        co = (PyCodeObject*)call_result;
+        call_result = NULL;
+        if (0) {
+            cleanup_code_too:
+            Py_XDECREF((PyObject*)co);
+            co = NULL;
+        }
+        end:
+        Py_XDECREF(kwds);
+        Py_XDECREF(argcount);
+        Py_XDECREF(posonlyargcount);
+        Py_XDECREF(kwonlyargcount);
+        Py_XDECREF(nlocals);
+        Py_XDECREF(stacksize);
+        Py_XDECREF(replace);
+        Py_XDECREF(call_result);
+        Py_XDECREF(empty);
+        if (type) {
+            PyErr_Restore(type, value, traceback);
+        }
+        return co;
+    }
+#else
   #define __Pyx_PyCode_New(a, k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos)\
           PyCode_New(a, k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos)
+#endif
   #define __Pyx_DefaultClassType PyType_Type
 #endif
 #ifndef Py_TPFLAGS_CHECKTYPES
@@ -433,8 +565,12 @@ static CYTHON_INLINE void * PyThread_tss_get(Py_tss_t *key) {
 #endif
 #if PY_VERSION_HEX > 0x03030000 && defined(PyUnicode_KIND)
   #define CYTHON_PEP393_ENABLED 1
-  #define __Pyx_PyUnicode_READY(op)       (likely(PyUnicode_IS_READY(op)) ?\
-                                              0 : _PyUnicode_Ready((PyObject *)(op)))
+  #if PY_VERSION_HEX >= 0x030C0000
+    #define __Pyx_PyUnicode_READY(op)       (0)
+  #else
+    #define __Pyx_PyUnicode_READY(op)       (likely(PyUnicode_IS_READY(op)) ?\
+                                                0 : _PyUnicode_Ready((PyObject *)(op)))
+  #endif
   #define __Pyx_PyUnicode_GET_LENGTH(u)   PyUnicode_GET_LENGTH(u)
   #define __Pyx_PyUnicode_READ_CHAR(u, i) PyUnicode_READ_CHAR(u, i)
   #define __Pyx_PyUnicode_MAX_CHAR_VALUE(u)   PyUnicode_MAX_CHAR_VALUE(u)
@@ -442,7 +578,15 @@ static CYTHON_INLINE void * PyThread_tss_get(Py_tss_t *key) {
   #define __Pyx_PyUnicode_DATA(u)         PyUnicode_DATA(u)
   #define __Pyx_PyUnicode_READ(k, d, i)   PyUnicode_READ(k, d, i)
   #define __Pyx_PyUnicode_WRITE(k, d, i, ch)  PyUnicode_WRITE(k, d, i, ch)
-  #define __Pyx_PyUnicode_IS_TRUE(u)      (0 != (likely(PyUnicode_IS_READY(u)) ? PyUnicode_GET_LENGTH(u) : PyUnicode_GET_SIZE(u)))
+  #if PY_VERSION_HEX >= 0x030C0000
+    #define __Pyx_PyUnicode_IS_TRUE(u)      (0 != PyUnicode_GET_LENGTH(u))
+  #else
+    #if CYTHON_COMPILING_IN_CPYTHON && PY_VERSION_HEX >= 0x03090000
+    #define __Pyx_PyUnicode_IS_TRUE(u)      (0 != (likely(PyUnicode_IS_READY(u)) ? PyUnicode_GET_LENGTH(u) : ((PyCompactUnicodeObject *)(u))->wstr_length))
+    #else
+    #define __Pyx_PyUnicode_IS_TRUE(u)      (0 != (likely(PyUnicode_IS_READY(u)) ? PyUnicode_GET_LENGTH(u) : PyUnicode_GET_SIZE(u)))
+    #endif
+  #endif
 #else
   #define CYTHON_PEP393_ENABLED 0
   #define PyUnicode_1BYTE_KIND  1
@@ -491,8 +635,10 @@ static CYTHON_INLINE void * PyThread_tss_get(Py_tss_t *key) {
   #define PyString_Type                PyUnicode_Type
   #define PyString_Check               PyUnicode_Check
   #define PyString_CheckExact          PyUnicode_CheckExact
+#ifndef PyObject_Unicode
   #define PyObject_Unicode             PyObject_Str
 #endif
+#endif
 #if PY_MAJOR_VERSION >= 3
   #define __Pyx_PyBaseString_Check(obj) PyUnicode_Check(obj)
   #define __Pyx_PyBaseString_CheckExact(obj) PyUnicode_CheckExact(obj)
@@ -503,6 +649,13 @@ static CYTHON_INLINE void * PyThread_tss_get(Py_tss_t *key) {
 #ifndef PySet_CheckExact
   #define PySet_CheckExact(obj)        (Py_TYPE(obj) == &PySet_Type)
 #endif
+#if PY_VERSION_HEX >= 0x030900A4
+  #define __Pyx_SET_REFCNT(obj, refcnt) Py_SET_REFCNT(obj, refcnt)
+  #define __Pyx_SET_SIZE(obj, size) Py_SET_SIZE(obj, size)
+#else
+  #define __Pyx_SET_REFCNT(obj, refcnt) Py_REFCNT(obj) = (refcnt)
+  #define __Pyx_SET_SIZE(obj, size) Py_SIZE(obj) = (size)
+#endif
 #if CYTHON_ASSUME_SAFE_MACROS
   #define __Pyx_PySequence_SIZE(seq)  Py_SIZE(seq)
 #else
@@ -536,13 +689,13 @@ static CYTHON_INLINE void * PyThread_tss_get(Py_tss_t *key) {
 #if PY_VERSION_HEX < 0x030200A4
   typedef long Py_hash_t;
   #define __Pyx_PyInt_FromHash_t PyInt_FromLong
-  #define __Pyx_PyInt_AsHash_t   PyInt_AsLong
+  #define __Pyx_PyInt_AsHash_t   __Pyx_PyIndex_AsHash_t
 #else
   #define __Pyx_PyInt_FromHash_t PyInt_FromSsize_t
-  #define __Pyx_PyInt_AsHash_t   PyInt_AsSsize_t
+  #define __Pyx_PyInt_AsHash_t   __Pyx_PyIndex_AsSsize_t
 #endif
 #if PY_MAJOR_VERSION >= 3
-  #define __Pyx_PyMethod_New(func, self, klass) ((self) ? PyMethod_New(func, self) : (Py_INCREF(func), func))
+  #define __Pyx_PyMethod_New(func, self, klass) ((self) ? ((void)(klass), PyMethod_New(func, self)) : __Pyx_NewRef(func))
 #else
   #define __Pyx_PyMethod_New(func, self, klass) PyMethod_New(func, self, klass)
 #endif
@@ -564,8 +717,10 @@ static CYTHON_INLINE void * PyThread_tss_get(Py_tss_t *key) {
     } __Pyx_PyAsyncMethodsStruct;
 #endif
 
-#if defined(WIN32) || defined(MS_WINDOWS)
-  #define _USE_MATH_DEFINES
+#if defined(_WIN32) || defined(WIN32) || defined(MS_WINDOWS)
+  #if !defined(_USE_MATH_DEFINES)
+    #define _USE_MATH_DEFINES
+  #endif
 #endif
 #include <math.h>
 #ifdef NAN
@@ -583,11 +738,10 @@ static CYTHON_INLINE float __PYX_NAN() {
 #define __Pyx_truncl truncl
 #endif
 
-
+#define __PYX_MARK_ERR_POS(f_index, lineno) \
+    { __pyx_filename = __pyx_f[f_index]; (void)__pyx_filename; __pyx_lineno = lineno; (void)__pyx_lineno; __pyx_clineno = __LINE__; (void)__pyx_clineno; }
 #define __PYX_ERR(f_index, lineno, Ln_error) \
-{ \
-  __pyx_filename = __pyx_f[f_index]; __pyx_lineno = lineno; __pyx_clineno = __LINE__; goto Ln_error; \
-}
+    { __PYX_MARK_ERR_POS(f_index, lineno) goto Ln_error; }
 
 #ifndef __PYX_EXTERN_C
   #ifdef __cplusplus
@@ -600,6 +754,8 @@ static CYTHON_INLINE float __PYX_NAN() {
 #define __PYX_HAVE__spavro__fast_binary
 #define __PYX_HAVE_API__spavro__fast_binary
 /* Early includes */
+#include <string.h>
+#include <stdio.h>
 #ifdef _OPENMP
 #include <omp.h>
 #endif /* _OPENMP */
@@ -696,6 +852,7 @@ static CYTHON_INLINE PyObject* __Pyx_PyNumber_IntOrLong(PyObject* x);
     (likely(PyTuple_CheckExact(obj)) ? __Pyx_NewRef(obj) : PySequence_Tuple(obj))
 static CYTHON_INLINE Py_ssize_t __Pyx_PyIndex_AsSsize_t(PyObject*);
 static CYTHON_INLINE PyObject * __Pyx_PyInt_FromSize_t(size_t);
+static CYTHON_INLINE Py_hash_t __Pyx_PyIndex_AsHash_t(PyObject*);
 #if CYTHON_ASSUME_SAFE_MACROS
 #define __pyx_PyFloat_AsDouble(x) (PyFloat_CheckExact(x) ? PyFloat_AS_DOUBLE(x) : PyFloat_AsDouble(x))
 #else
@@ -809,10 +966,16 @@ static const char *__pyx_filename;
 
 static const char *__pyx_f[] = {
   "src/spavro/fast_binary.pyx",
+  "array.pxd",
   "stringsource",
+  "type.pxd",
 };
 
 /*--- Type declarations ---*/
+#ifndef _ARRAYARRAY_H
+struct arrayobject;
+typedef struct arrayobject arrayobject;
+#endif
 struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct__make_union_reader;
 struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_1_make_record_reader;
 struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_2_make_enum_reader;
@@ -829,15 +992,6 @@ struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_12_make_fixed_check;
 struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_13_make_map_check;
 struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_14___pyx_f_6spavro_11fast_binary_create_promotions_for_union;
 struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_15_make_union_writer;
-struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_16_make_enum_writer;
-struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_17_make_record_writer;
-struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_18_make_array_writer;
-struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_19_make_map_writer;
-struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_20_make_boolean_writer;
-struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_21_make_fixed_writer;
-struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_22_make_int_writer;
-struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_23_make_long_writer;
-struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_24_make_string_writer;
 struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_void____object____long__long___to_py;
 struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_object____object___to_py;
 struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_unicode____object___to_py;
@@ -846,11 +1000,8 @@ struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_double____object___to_py;
 struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_long__long____object___to_py;
 struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_bytes____object___to_py;
 struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_float____object___to_py;
-struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_void____object____object___to_py;
-struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_void____object____float___to_py;
-struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_void____object____double___to_py;
 
-/* "spavro/fast_binary.pyx":103
+/* "spavro/fast_binary.pyx":106
  * 
  * 
  * def make_union_reader(union_schema):             # <<<<<<<<<<<<<<
@@ -864,7 +1015,7 @@ struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct__make_union_reader {
 };
 
 
-/* "spavro/fast_binary.pyx":117
+/* "spavro/fast_binary.pyx":120
  * 
  * 
  * def make_record_reader(schema):             # <<<<<<<<<<<<<<
@@ -879,7 +1030,7 @@ struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_1_make_record_reader {
 };
 
 
-/* "spavro/fast_binary.pyx":126
+/* "spavro/fast_binary.pyx":129
  * 
  * 
  * def make_enum_reader(schema):             # <<<<<<<<<<<<<<
@@ -893,7 +1044,7 @@ struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_2_make_enum_reader {
 };
 
 
-/* "spavro/fast_binary.pyx":134
+/* "spavro/fast_binary.pyx":137
  *     return enum_reader
  * 
  * def make_array_reader(schema):             # <<<<<<<<<<<<<<
@@ -907,7 +1058,7 @@ struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_3_make_array_reader {
 };
 
 
-/* "spavro/fast_binary.pyx":151
+/* "spavro/fast_binary.pyx":154
  *     return array_reader
  * 
  * def make_map_reader(schema):             # <<<<<<<<<<<<<<
@@ -921,7 +1072,7 @@ struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_4_make_map_reader {
 };
 
 
-/* "spavro/fast_binary.pyx":169
+/* "spavro/fast_binary.pyx":172
  *     return map_reader
  * 
  * def make_fixed_reader(schema):             # <<<<<<<<<<<<<<
@@ -935,7 +1086,7 @@ struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_5_make_fixed_reader {
 };
 
 
-/* "spavro/fast_binary.pyx":199
+/* "spavro/fast_binary.pyx":202
  * 
  * 
  * def make_skip_reader(schema):             # <<<<<<<<<<<<<<
@@ -949,7 +1100,7 @@ struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_6_make_skip_reader {
 };
 
 
-/* "spavro/fast_binary.pyx":210
+/* "spavro/fast_binary.pyx":213
  * 
  * 
  * def make_default_reader(schema):             # <<<<<<<<<<<<<<
@@ -963,7 +1114,7 @@ struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_7_make_default_reader
 };
 
 
-/* "spavro/fast_binary.pyx":366
+/* "spavro/fast_binary.pyx":485
  * 
  * 
  * def make_record_check(schema):             # <<<<<<<<<<<<<<
@@ -976,7 +1127,7 @@ struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_8_make_record_check {
 };
 
 
-/* "spavro/fast_binary.pyx":373
+/* "spavro/fast_binary.pyx":492
  * 
  * 
  * def make_enum_check(schema):             # <<<<<<<<<<<<<<
@@ -989,7 +1140,7 @@ struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_9_make_enum_check {
 };
 
 
-/* "spavro/fast_binary.pyx":404
+/* "spavro/fast_binary.pyx":523
  *     return lambda datum: isinstance(datum, str) or isinstance(datum, bytes)
  * 
  * def make_array_check(schema):             # <<<<<<<<<<<<<<
@@ -1002,7 +1153,7 @@ struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_10_make_array_check {
 };
 
 
-/* "spavro/fast_binary.pyx":410
+/* "spavro/fast_binary.pyx":529
  *     return array_check
  * 
  * def make_union_check(union_schema):             # <<<<<<<<<<<<<<
@@ -1015,7 +1166,7 @@ struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_11_make_union_check {
 };
 
 
-/* "spavro/fast_binary.pyx":416
+/* "spavro/fast_binary.pyx":535
  *     return union_check
  * 
  * def make_fixed_check(schema):             # <<<<<<<<<<<<<<
@@ -1028,7 +1179,7 @@ struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_12_make_fixed_check {
 };
 
 
-/* "spavro/fast_binary.pyx":422
+/* "spavro/fast_binary.pyx":541
  *     return fixed_check
  * 
  * def make_map_check(schema):             # <<<<<<<<<<<<<<
@@ -1041,7 +1192,7 @@ struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_13_make_map_check {
 };
 
 
-/* "spavro/fast_binary.pyx":457
+/* "spavro/fast_binary.pyx":576
  * 
  * 
  * cdef void create_promotions_for_union(dict writer_lookup_dict):             # <<<<<<<<<<<<<<
@@ -1054,7 +1205,7 @@ struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_14___pyx_f_6spavro_11f
 };
 
 
-/* "spavro/fast_binary.pyx":477
+/* "spavro/fast_binary.pyx":596
  * 
  * 
  * def make_union_writer(union_schema):             # <<<<<<<<<<<<<<
@@ -1064,133 +1215,10 @@ struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_14___pyx_f_6spavro_11f
 struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_15_make_union_writer {
   PyObject_HEAD
   PyObject *__pyx_v_union_schema;
-  PyObject *__pyx_v_writer_lookup;
   PyObject *__pyx_v_writer_lookup_dict;
 };
 
 
-/* "spavro/fast_binary.pyx":561
- *     return write_union
- * 
- * def make_enum_writer(schema):             # <<<<<<<<<<<<<<
- *     cdef list symbols = schema['symbols']
- * 
- */
-struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_16_make_enum_writer {
-  PyObject_HEAD
-  PyObject *__pyx_v_schema;
-  PyObject *__pyx_v_symbols;
-};
-
-
-/* "spavro/fast_binary.pyx":572
- * 
- * 
- * def make_record_writer(schema):             # <<<<<<<<<<<<<<
- *     cdef list fields = [WriteField(field['name'], get_writer(field['type'])) for field in schema['fields']]
- * 
- */
-struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_17_make_record_writer {
-  PyObject_HEAD
-  PyObject *__pyx_v_fields;
-  PyObject *__pyx_v_schema;
-};
-
-
-/* "spavro/fast_binary.pyx":585
- * 
- * 
- * def make_array_writer(schema):             # <<<<<<<<<<<<<<
- *     item_writer = get_writer(schema['items'])
- * 
- */
-struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_18_make_array_writer {
-  PyObject_HEAD
-  PyObject *__pyx_v_item_writer;
-  PyObject *__pyx_v_schema;
-};
-
-
-/* "spavro/fast_binary.pyx":599
- * 
- * 
- * def make_map_writer(schema):             # <<<<<<<<<<<<<<
- *     map_value_writer = get_writer(schema['values'])
- * 
- */
-struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_19_make_map_writer {
-  PyObject_HEAD
-  PyObject *__pyx_v_map_value_writer;
-  PyObject *__pyx_v_schema;
-};
-
-
-/* "spavro/fast_binary.pyx":614
- * 
- * 
- * def make_boolean_writer(schema):             # <<<<<<<<<<<<<<
- *     '''Create a boolean writer, adds a validation step before the actual
- *     write function'''
- */
-struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_20_make_boolean_writer {
-  PyObject_HEAD
-  PyObject *__pyx_v_schema;
-};
-
-
-/* "spavro/fast_binary.pyx":624
- * 
- * 
- * def make_fixed_writer(schema):             # <<<<<<<<<<<<<<
- *     '''A writer that must write X bytes defined by the schema'''
- *     cdef long size = schema['size']
- */
-struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_21_make_fixed_writer {
-  PyObject_HEAD
-  PyObject *__pyx_v_schema;
-  long __pyx_v_size;
-};
-
-
-/* "spavro/fast_binary.pyx":636
- * 
- * 
- * def make_int_writer(schema):             # <<<<<<<<<<<<<<
- *     '''Create a int writer, adds a validation step before the actual
- *     write function to make sure the int value doesn't overflow'''
- */
-struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_22_make_int_writer {
-  PyObject_HEAD
-  PyObject *__pyx_v_schema;
-};
-
-
-/* "spavro/fast_binary.pyx":648
- * 
- * 
- * def make_long_writer(schema):             # <<<<<<<<<<<<<<
- *     '''Create a long writer, adds a validation step before the actual
- *     write function to make sure the long value doesn't overflow'''
- */
-struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_23_make_long_writer {
-  PyObject_HEAD
-  PyObject *__pyx_v_schema;
-};
-
-
-/* "spavro/fast_binary.pyx":659
- * 
- * 
- * def make_string_writer(schema):             # <<<<<<<<<<<<<<
- *     def checked_string_writer(outbuf, datum):
- *         if not isinstance(datum, six.string_types):
- */
-struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_24_make_string_writer {
-  PyObject_HEAD
-  PyObject *__pyx_v_schema;
-};
-
-
 /* "cfunc.to_py":64
  * 
  * @cname("__Pyx_CFunc_void____object____long__long___to_py")
@@ -1238,21 +1266,6 @@ struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_float____object___to_py {
   float (*__pyx_v_f)(PyObject *);
 };
 
-struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_void____object____object___to_py {
-  PyObject_HEAD
-  void (*__pyx_v_f)(PyObject *, PyObject *);
-};
-
-struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_void____object____float___to_py {
-  PyObject_HEAD
-  void (*__pyx_v_f)(PyObject *, float);
-};
-
-struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_void____object____double___to_py {
-  PyObject_HEAD
-  void (*__pyx_v_f)(PyObject *, double);
-};
-
 
 /* --- Runtime support code (head) --- */
 /* Refnanny.proto */
@@ -1340,7 +1353,7 @@ static CYTHON_INLINE PyObject *__Pyx_PyCFunction_FastCall(PyObject *func, PyObje
 #define __Pyx_PyFunction_FastCall(func, args, nargs)\
     __Pyx_PyFunction_FastCallDict((func), (args), (nargs), NULL)
 #if 1 || PY_VERSION_HEX < 0x030600B1
-static PyObject *__Pyx_PyFunction_FastCallDict(PyObject *func, PyObject **args, int nargs, PyObject *kwargs);
+static PyObject *__Pyx_PyFunction_FastCallDict(PyObject *func, PyObject **args, Py_ssize_t nargs, PyObject *kwargs);
 #else
 #define __Pyx_PyFunction_FastCallDict(func, args, nargs, kwargs) _PyFunction_FastCallDict(func, args, nargs, kwargs)
 #endif
@@ -1349,13 +1362,21 @@ static PyObject *__Pyx_PyFunction_FastCallDict(PyObject *func, PyObject **args,
 #ifndef Py_MEMBER_SIZE
 #define Py_MEMBER_SIZE(type, member) sizeof(((type *)0)->member)
 #endif
+#if CYTHON_FAST_PYCALL
   static size_t __pyx_pyframe_localsplus_offset = 0;
   #include "frameobject.h"
+#if PY_VERSION_HEX >= 0x030b00a6
+  #ifndef Py_BUILD_CORE
+    #define Py_BUILD_CORE 1
+  #endif
+  #include "internal/pycore_frame.h"
+#endif
   #define __Pxy_PyFrame_Initialize_Offsets()\
     ((void)__Pyx_BUILD_ASSERT_EXPR(sizeof(PyFrameObject) == offsetof(PyFrameObject, f_localsplus) + Py_MEMBER_SIZE(PyFrameObject, f_localsplus)),\
      (void)(__pyx_pyframe_localsplus_offset = ((size_t)PyFrame_Type.tp_basicsize) - Py_MEMBER_SIZE(PyFrameObject, f_localsplus)))
   #define __Pyx_PyFrame_GetLocalsplus(frame)\
     (assert(__pyx_pyframe_localsplus_offset), (PyObject **)(((char *)(frame)) + __pyx_pyframe_localsplus_offset))
+#endif // CYTHON_FAST_PYCALL
 #endif
 
 /* PyObjectCall.proto */
@@ -1525,18 +1546,18 @@ static CYTHON_INLINE int __Pyx_object_dict_version_matches(PyObject* obj, PY_UIN
 
 /* GetModuleGlobalName.proto */
 #if CYTHON_USE_DICT_VERSIONS
-#define __Pyx_GetModuleGlobalName(var, name)  {\
+#define __Pyx_GetModuleGlobalName(var, name)  do {\
     static PY_UINT64_T __pyx_dict_version = 0;\
     static PyObject *__pyx_dict_cached_value = NULL;\
     (var) = (likely(__pyx_dict_version == __PYX_GET_DICT_VERSION(__pyx_d))) ?\
         (likely(__pyx_dict_cached_value) ? __Pyx_NewRef(__pyx_dict_cached_value) : __Pyx_GetBuiltinName(name)) :\
         __Pyx__GetModuleGlobalName(name, &__pyx_dict_version, &__pyx_dict_cached_value);\
-}
-#define __Pyx_GetModuleGlobalNameUncached(var, name)  {\
+} while(0)
+#define __Pyx_GetModuleGlobalNameUncached(var, name)  do {\
     PY_UINT64_T __pyx_dict_version;\
     PyObject *__pyx_dict_cached_value;\
     (var) = __Pyx__GetModuleGlobalName(name, &__pyx_dict_version, &__pyx_dict_cached_value);\
-}
+} while(0)
 static PyObject *__Pyx__GetModuleGlobalName(PyObject *name, PY_UINT64_T *dict_version, PyObject **dict_cached_value);
 #else
 #define __Pyx_GetModuleGlobalName(var, name)  (var) = __Pyx__GetModuleGlobalName(name)
@@ -1552,7 +1573,7 @@ static CYTHON_INLINE int __Pyx_ListComp_Append(PyObject* list, PyObject* x) {
     if (likely(L->allocated > len)) {
         Py_INCREF(x);
         PyList_SET_ITEM(list, len, x);
-        Py_SIZE(list) = len+1;
+        __Pyx_SET_SIZE(list, len + 1);
         return 0;
     }
     return PyList_Append(list, x);
@@ -1564,7 +1585,7 @@ static CYTHON_INLINE int __Pyx_ListComp_Append(PyObject* list, PyObject* x) {
 /* FetchCommonType.proto */
 static PyTypeObject* __Pyx_FetchCommonType(PyTypeObject* type);
 
-/* CythonFunction.proto */
+/* CythonFunctionShared.proto */
 #define __Pyx_CyFunction_USED 1
 #define __Pyx_CYFUNCTION_STATICMETHOD  0x01
 #define __Pyx_CYFUNCTION_CLASSMETHOD   0x02
@@ -1592,6 +1613,7 @@ typedef struct {
     PyObject *func_classobj;
     void *defaults;
     int defaults_pyobjects;
+    size_t defaults_size;  // used by FusedFunction for copying defaults
     int flags;
     PyObject *defaults_tuple;
     PyObject *defaults_kwdict;
@@ -1600,9 +1622,7 @@ typedef struct {
 } __pyx_CyFunctionObject;
 static PyTypeObject *__pyx_CyFunctionType = 0;
 #define __Pyx_CyFunction_Check(obj)  (__Pyx_TypeCheck(obj, __pyx_CyFunctionType))
-#define __Pyx_CyFunction_NewEx(ml, flags, qualname, self, module, globals, code)\
-    __Pyx_CyFunction_New(__pyx_CyFunctionType, ml, flags, qualname, self, module, globals, code)
-static PyObject *__Pyx_CyFunction_New(PyTypeObject *, PyMethodDef *ml,
+static PyObject *__Pyx_CyFunction_Init(__pyx_CyFunctionObject* op, PyMethodDef *ml,
                                       int flags, PyObject* qualname,
                                       PyObject *self,
                                       PyObject *module, PyObject *globals,
@@ -1618,6 +1638,13 @@ static CYTHON_INLINE void __Pyx_CyFunction_SetAnnotationsDict(PyObject *m,
                                                               PyObject *dict);
 static int __pyx_CyFunction_init(void);
 
+/* CythonFunction.proto */
+static PyObject *__Pyx_CyFunction_New(PyMethodDef *ml,
+                                      int flags, PyObject* qualname,
+                                      PyObject *closure,
+                                      PyObject *module, PyObject *globals,
+                                      PyObject* code);
+
 /* PyObjectSetAttrStr.proto */
 #if CYTHON_USE_TYPE_SLOTS
 #define __Pyx_PyObject_DelAttrStr(o,n) __Pyx_PyObject_SetAttrStr(o, n, NULL)
@@ -1644,7 +1671,7 @@ static CYTHON_INLINE int __Pyx_PyList_Append(PyObject* list, PyObject* x) {
     if (likely(L->allocated > len) & likely(len > (L->allocated >> 1))) {
         Py_INCREF(x);
         PyList_SET_ITEM(list, len, x);
-        Py_SIZE(list) = len+1;
+        __Pyx_SET_SIZE(list, len + 1);
         return 0;
     }
     return PyList_Append(list, x);
@@ -1696,24 +1723,6 @@ static CYTHON_INLINE int __Pyx_PySequence_ContainsTF(PyObject* item, PyObject* s
 static CYTHON_INLINE PyObject* __Pyx_PyBytes_Join(PyObject* sep, PyObject* values);
 #endif
 
-/* RaiseTooManyValuesToUnpack.proto */
-static CYTHON_INLINE void __Pyx_RaiseTooManyValuesError(Py_ssize_t expected);
-
-/* RaiseNeedMoreValuesToUnpack.proto */
-static CYTHON_INLINE void __Pyx_RaiseNeedMoreValuesError(Py_ssize_t index);
-
-/* IterFinish.proto */
-static CYTHON_INLINE int __Pyx_IterFinish(void);
-
-/* UnpackItemEndCheck.proto */
-static int __Pyx_IternextUnpackEndCheck(PyObject *retval, Py_ssize_t expected);
-
-/* PyDictContains.proto */
-static CYTHON_INLINE int __Pyx_PyDict_ContainsTF(PyObject* item, PyObject* dict, int eq) {
-    int result = PyDict_Contains(dict, item);
-    return unlikely(result < 0) ? result : (result == (eq == Py_EQ));
-}
-
 /* UnpackUnboundCMethod.proto */
 typedef struct {
     PyObject *type;
@@ -1731,11 +1740,8 @@ static CYTHON_INLINE PyObject* __Pyx_CallUnboundCMethod1(__Pyx_CachedCFunction*
 #define __Pyx_CallUnboundCMethod1(cfunc, self, arg)  __Pyx__CallUnboundCMethod1(cfunc, self, arg)
 #endif
 
-/* ArgTypeTest.proto */
-#define __Pyx_ArgTypeTest(obj, type, none_allowed, name, exact)\
-    ((likely((Py_TYPE(obj) == type) | (none_allowed && (obj == Py_None)))) ? 1 :\
-        __Pyx__ArgTypeTest(obj, type, name, exact))
-static int __Pyx__ArgTypeTest(PyObject *obj, PyTypeObject *type, const char *name, int exact);
+/* IterFinish.proto */
+static CYTHON_INLINE int __Pyx_IterFinish(void);
 
 /* PyObjectGetMethod.proto */
 static int __Pyx_PyObject_GetMethod(PyObject *obj, PyObject *name, PyObject **method);
@@ -1743,6 +1749,15 @@ static int __Pyx_PyObject_GetMethod(PyObject *obj, PyObject *name, PyObject **me
 /* PyObjectCallMethod0.proto */
 static PyObject* __Pyx_PyObject_CallMethod0(PyObject* obj, PyObject* method_name);
 
+/* RaiseNeedMoreValuesToUnpack.proto */
+static CYTHON_INLINE void __Pyx_RaiseNeedMoreValuesError(Py_ssize_t index);
+
+/* RaiseTooManyValuesToUnpack.proto */
+static CYTHON_INLINE void __Pyx_RaiseTooManyValuesError(Py_ssize_t expected);
+
+/* UnpackItemEndCheck.proto */
+static int __Pyx_IternextUnpackEndCheck(PyObject *retval, Py_ssize_t expected);
+
 /* RaiseNoneIterError.proto */
 static CYTHON_INLINE void __Pyx_RaiseNoneNotIterableError(void);
 
@@ -1767,6 +1782,23 @@ static CYTHON_INLINE PyObject* __Pyx_dict_iterator(PyObject* dict, int is_dict,
 static CYTHON_INLINE int __Pyx_dict_iter_next(PyObject* dict_or_iter, Py_ssize_t orig_length, Py_ssize_t* ppos,
                                               PyObject** pkey, PyObject** pvalue, PyObject** pitem, int is_dict);
 
+/* PyDictContains.proto */
+static CYTHON_INLINE int __Pyx_PyDict_ContainsTF(PyObject* item, PyObject* dict, int eq) {
+    int result = PyDict_Contains(dict, item);
+    return unlikely(result < 0) ? result : (result == (eq == Py_EQ));
+}
+
+/* dict_getitem_default.proto */
+static PyObject* __Pyx_PyDict_GetItemDefault(PyObject* d, PyObject* key, PyObject* default_value);
+
+/* CallUnboundCMethod2.proto */
+static PyObject* __Pyx__CallUnboundCMethod2(__Pyx_CachedCFunction* cfunc, PyObject* self, PyObject* arg1, PyObject* arg2);
+#if CYTHON_COMPILING_IN_CPYTHON && PY_VERSION_HEX >= 0x030600B1
+static CYTHON_INLINE PyObject *__Pyx_CallUnboundCMethod2(__Pyx_CachedCFunction *cfunc, PyObject *self, PyObject *arg1, PyObject *arg2);
+#else
+#define __Pyx_CallUnboundCMethod2(cfunc, self, arg1, arg2)  __Pyx__CallUnboundCMethod2(cfunc, self, arg1, arg2)
+#endif
+
 /* PyObject_GenericGetAttrNoDict.proto */
 #if CYTHON_USE_TYPE_SLOTS && CYTHON_USE_PYTYPE_LOOKUP && PY_VERSION_HEX < 0x03070000
 static CYTHON_INLINE PyObject* __Pyx_PyObject_GenericGetAttrNoDict(PyObject* obj, PyObject* attr_name);
@@ -1774,6 +1806,25 @@ static CYTHON_INLINE PyObject* __Pyx_PyObject_GenericGetAttrNoDict(PyObject* obj
 #define __Pyx_PyObject_GenericGetAttrNoDict PyObject_GenericGetAttr
 #endif
 
+/* TypeImport.proto */
+#ifndef __PYX_HAVE_RT_ImportType_proto
+#define __PYX_HAVE_RT_ImportType_proto
+#if __STDC_VERSION__ >= 201112L
+#include <stdalign.h>
+#endif
+#if __STDC_VERSION__ >= 201112L || __cplusplus >= 201103L
+#define __PYX_GET_STRUCT_ALIGNMENT(s) alignof(s)
+#else
+#define __PYX_GET_STRUCT_ALIGNMENT(s) sizeof(void*)
+#endif
+enum __Pyx_ImportType_CheckSize {
+   __Pyx_ImportType_CheckSize_Error = 0,
+   __Pyx_ImportType_CheckSize_Warn = 1,
+   __Pyx_ImportType_CheckSize_Ignore = 2
+};
+static PyTypeObject *__Pyx_ImportType(PyObject* module, const char *module_name, const char *class_name, size_t size, size_t alignment, enum __Pyx_ImportType_CheckSize check_size);
+#endif
+
 /* Import.proto */
 static PyObject *__Pyx_Import(PyObject *name, PyObject *from_list, int level);
 
@@ -1826,25 +1877,151 @@ static void __pyx_insert_code_object(int code_line, PyCodeObject* code_object);
 static void __Pyx_AddTraceback(const char *funcname, int c_line,
                                int py_line, const char *filename);
 
-/* CIntToPy.proto */
-static CYTHON_INLINE PyObject* __Pyx_PyInt_From_PY_LONG_LONG(PY_LONG_LONG value);
-
-/* CIntToPy.proto */
-static CYTHON_INLINE PyObject* __Pyx_PyInt_From_long(long value);
-
-/* CIntFromPy.proto */
-static CYTHON_INLINE PY_LONG_LONG __Pyx_PyInt_As_PY_LONG_LONG(PyObject *);
-
-/* CIntFromPy.proto */
-static CYTHON_INLINE long __Pyx_PyInt_As_long(PyObject *);
-
-/* CIntFromPy.proto */
-static CYTHON_INLINE int __Pyx_PyInt_As_int(PyObject *);
-
-/* CIntFromPy.proto */
-static CYTHON_INLINE char __Pyx_PyInt_As_char(PyObject *);
-
-/* FastTypeChecks.proto */
+/* ArrayAPI.proto */
+#ifndef _ARRAYARRAY_H
+#define _ARRAYARRAY_H
+typedef struct arraydescr {
+    int typecode;
+    int itemsize;
+    PyObject * (*getitem)(struct arrayobject *, Py_ssize_t);
+    int (*setitem)(struct arrayobject *, Py_ssize_t, PyObject *);
+#if PY_MAJOR_VERSION >= 3
+    char *formats;
+#endif
+} arraydescr;
+struct arrayobject {
+    PyObject_HEAD
+    Py_ssize_t ob_size;
+    union {
+        char *ob_item;
+        float *as_floats;
+        double *as_doubles;
+        int *as_ints;
+        unsigned int *as_uints;
+        unsigned char *as_uchars;
+        signed char *as_schars;
+        char *as_chars;
+        unsigned long *as_ulongs;
+        long *as_longs;
+#if PY_MAJOR_VERSION >= 3
+        unsigned long long *as_ulonglongs;
+        long long *as_longlongs;
+#endif
+        short *as_shorts;
+        unsigned short *as_ushorts;
+        Py_UNICODE *as_pyunicodes;
+        void *as_voidptr;
+    } data;
+    Py_ssize_t allocated;
+    struct arraydescr *ob_descr;
+    PyObject *weakreflist;
+#if PY_MAJOR_VERSION >= 3
+        int ob_exports;
+#endif
+};
+#ifndef NO_NEWARRAY_INLINE
+static CYTHON_INLINE PyObject * newarrayobject(PyTypeObject *type, Py_ssize_t size,
+    struct arraydescr *descr) {
+    arrayobject *op;
+    size_t nbytes;
+    if (size < 0) {
+        PyErr_BadInternalCall();
+        return NULL;
+    }
+    nbytes = size * descr->itemsize;
+    if (nbytes / descr->itemsize != (size_t)size) {
+        return PyErr_NoMemory();
+    }
+    op = (arrayobject *) type->tp_alloc(type, 0);
+    if (op == NULL) {
+        return NULL;
+    }
+    op->ob_descr = descr;
+    op->allocated = size;
+    op->weakreflist = NULL;
+    __Pyx_SET_SIZE(op, size);
+    if (size <= 0) {
+        op->data.ob_item = NULL;
+    }
+    else {
+        op->data.ob_item = PyMem_NEW(char, nbytes);
+        if (op->data.ob_item == NULL) {
+            Py_DECREF(op);
+            return PyErr_NoMemory();
+        }
+    }
+    return (PyObject *) op;
+}
+#else
+PyObject* newarrayobject(PyTypeObject *type, Py_ssize_t size,
+    struct arraydescr *descr);
+#endif
+static CYTHON_INLINE int resize(arrayobject *self, Py_ssize_t n) {
+    void *items = (void*) self->data.ob_item;
+    PyMem_Resize(items, char, (size_t)(n * self->ob_descr->itemsize));
+    if (items == NULL) {
+        PyErr_NoMemory();
+        return -1;
+    }
+    self->data.ob_item = (char*) items;
+    __Pyx_SET_SIZE(self, n);
+    self->allocated = n;
+    return 0;
+}
+static CYTHON_INLINE int resize_smart(arrayobject *self, Py_ssize_t n) {
+    void *items = (void*) self->data.ob_item;
+    Py_ssize_t newsize;
+    if (n < self->allocated && n*4 > self->allocated) {
+        __Pyx_SET_SIZE(self, n);
+        return 0;
+    }
+    newsize = n + (n / 2) + 1;
+    if (newsize <= n) {
+        PyErr_NoMemory();
+        return -1;
+    }
+    PyMem_Resize(items, char, (size_t)(newsize * self->ob_descr->itemsize));
+    if (items == NULL) {
+        PyErr_NoMemory();
+        return -1;
+    }
+    self->data.ob_item = (char*) items;
+    __Pyx_SET_SIZE(self, n);
+    self->allocated = newsize;
+    return 0;
+}
+#endif
+
+/* GCCDiagnostics.proto */
+#if defined(__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6))
+#define __Pyx_HAS_GCC_DIAGNOSTIC
+#endif
+
+/* CIntFromPy.proto */
+static CYTHON_INLINE PY_LONG_LONG __Pyx_PyInt_As_PY_LONG_LONG(PyObject *);
+
+/* CIntToPy.proto */
+static CYTHON_INLINE PyObject* __Pyx_PyInt_From_PY_LONG_LONG(PY_LONG_LONG value);
+
+/* CIntToPy.proto */
+static CYTHON_INLINE PyObject* __Pyx_PyInt_From_long(long value);
+
+/* CIntFromPy.proto */
+static CYTHON_INLINE long __Pyx_PyInt_As_long(PyObject *);
+
+/* CIntToPy.proto */
+static CYTHON_INLINE PyObject* __Pyx_PyInt_From_char(char value);
+
+/* CIntFromPy.proto */
+static CYTHON_INLINE int __Pyx_PyInt_As_int(PyObject *);
+
+/* CIntFromPy.proto */
+static CYTHON_INLINE char __Pyx_PyInt_As_char(PyObject *);
+
+/* CIntFromPy.proto */
+static CYTHON_INLINE unsigned int __Pyx_PyInt_As_unsigned_int(PyObject *);
+
+/* FastTypeChecks.proto */
 #if CYTHON_COMPILING_IN_CPYTHON
 #define __Pyx_TypeCheck(obj, type) __Pyx_IsSubtype(Py_TYPE(obj), (PyTypeObject *)type)
 static CYTHON_INLINE int __Pyx_IsSubtype(PyTypeObject *a, PyTypeObject *b);
@@ -1864,6 +2041,31 @@ static int __Pyx_check_binary_version(void);
 static int __Pyx_InitStrings(__Pyx_StringTabEntry *t);
 
 
+/* Module declarations from 'libc.string' */
+
+/* Module declarations from 'libc.stdio' */
+
+/* Module declarations from '__builtin__' */
+
+/* Module declarations from 'cpython.type' */
+static PyTypeObject *__pyx_ptype_7cpython_4type_type = 0;
+
+/* Module declarations from 'cpython.ref' */
+
+/* Module declarations from 'cpython.exc' */
+
+/* Module declarations from 'cpython.mem' */
+
+/* Module declarations from 'array' */
+
+/* Module declarations from 'cpython' */
+
+/* Module declarations from 'cpython.object' */
+
+/* Module declarations from 'cpython.array' */
+static PyTypeObject *__pyx_ptype_7cpython_5array_array = 0;
+static CYTHON_INLINE int __pyx_f_7cpython_5array_extend_buffer(arrayobject *, char *, Py_ssize_t); /*proto*/
+
 /* Module declarations from 'spavro.fast_binary' */
 static PyTypeObject *__pyx_ptype_6spavro_11fast_binary___pyx_scope_struct__make_union_reader = 0;
 static PyTypeObject *__pyx_ptype_6spavro_11fast_binary___pyx_scope_struct_1_make_record_reader = 0;
@@ -1881,15 +2083,6 @@ static PyTypeObject *__pyx_ptype_6spavro_11fast_binary___pyx_scope_struct_12_mak
 static PyTypeObject *__pyx_ptype_6spavro_11fast_binary___pyx_scope_struct_13_make_map_check = 0;
 static PyTypeObject *__pyx_ptype_6spavro_11fast_binary___pyx_scope_struct_14___pyx_f_6spavro_11fast_binary_create_promotions_for_union = 0;
 static PyTypeObject *__pyx_ptype_6spavro_11fast_binary___pyx_scope_struct_15_make_union_writer = 0;
-static PyTypeObject *__pyx_ptype_6spavro_11fast_binary___pyx_scope_struct_16_make_enum_writer = 0;
-static PyTypeObject *__pyx_ptype_6spavro_11fast_binary___pyx_scope_struct_17_make_record_writer = 0;
-static PyTypeObject *__pyx_ptype_6spavro_11fast_binary___pyx_scope_struct_18_make_array_writer = 0;
-static PyTypeObject *__pyx_ptype_6spavro_11fast_binary___pyx_scope_struct_19_make_map_writer = 0;
-static PyTypeObject *__pyx_ptype_6spavro_11fast_binary___pyx_scope_struct_20_make_boolean_writer = 0;
-static PyTypeObject *__pyx_ptype_6spavro_11fast_binary___pyx_scope_struct_21_make_fixed_writer = 0;
-static PyTypeObject *__pyx_ptype_6spavro_11fast_binary___pyx_scope_struct_22_make_int_writer = 0;
-static PyTypeObject *__pyx_ptype_6spavro_11fast_binary___pyx_scope_struct_23_make_long_writer = 0;
-static PyTypeObject *__pyx_ptype_6spavro_11fast_binary___pyx_scope_struct_24_make_string_writer = 0;
 static PyTypeObject *__pyx_ptype___pyx_scope_struct____Pyx_CFunc_void____object____long__long___to_py = 0;
 static PyTypeObject *__pyx_ptype___pyx_scope_struct____Pyx_CFunc_object____object___to_py = 0;
 static PyTypeObject *__pyx_ptype___pyx_scope_struct____Pyx_CFunc_unicode____object___to_py = 0;
@@ -1898,9 +2091,6 @@ static PyTypeObject *__pyx_ptype___pyx_scope_struct____Pyx_CFunc_double____objec
 static PyTypeObject *__pyx_ptype___pyx_scope_struct____Pyx_CFunc_long__long____object___to_py = 0;
 static PyTypeObject *__pyx_ptype___pyx_scope_struct____Pyx_CFunc_bytes____object___to_py = 0;
 static PyTypeObject *__pyx_ptype___pyx_scope_struct____Pyx_CFunc_float____object___to_py = 0;
-static PyTypeObject *__pyx_ptype___pyx_scope_struct____Pyx_CFunc_void____object____object___to_py = 0;
-static PyTypeObject *__pyx_ptype___pyx_scope_struct____Pyx_CFunc_void____object____float___to_py = 0;
-static PyTypeObject *__pyx_ptype___pyx_scope_struct____Pyx_CFunc_void____object____double___to_py = 0;
 static PY_LONG_LONG __pyx_f_6spavro_11fast_binary_read_long(PyObject *); /*proto*/
 static PyObject *__pyx_f_6spavro_11fast_binary_read_bytes(PyObject *); /*proto*/
 static PyObject *__pyx_f_6spavro_11fast_binary_read_null(PyObject *); /*proto*/
@@ -1914,10 +2104,22 @@ static void __pyx_f_6spavro_11fast_binary_write_bytes(PyObject *, PyObject *); /
 static void __pyx_f_6spavro_11fast_binary_write_utf8(PyObject *, PyObject *); /*proto*/
 static void __pyx_f_6spavro_11fast_binary_write_float(PyObject *, float); /*proto*/
 static void __pyx_f_6spavro_11fast_binary_write_double(PyObject *, double); /*proto*/
-static void __pyx_f_6spavro_11fast_binary_write_null(PyObject *, PyObject *); /*proto*/
-static void __pyx_f_6spavro_11fast_binary_write_fixed(PyObject *, PyObject *); /*proto*/
 static PyObject *__pyx_f_6spavro_11fast_binary_write_boolean(PyObject *, char); /*proto*/
+static void __pyx_f_6spavro_11fast_binary_write_int_to_array(arrayobject *, PY_LONG_LONG); /*proto*/
+static void __pyx_f_6spavro_11fast_binary_write_long_to_array(arrayobject *, PY_LONG_LONG); /*proto*/
+static void __pyx_f_6spavro_11fast_binary_write_bytes_to_array(arrayobject *, PyObject *); /*proto*/
+static void __pyx_f_6spavro_11fast_binary_write_utf8_to_array(arrayobject *, PyObject *); /*proto*/
+static void __pyx_f_6spavro_11fast_binary_write_float_to_array(arrayobject *, float); /*proto*/
+static void __pyx_f_6spavro_11fast_binary_write_double_to_array(arrayobject *, double); /*proto*/
+static void __pyx_f_6spavro_11fast_binary_write_fixed_to_array(arrayobject *, PyObject *); /*proto*/
+static void __pyx_f_6spavro_11fast_binary_write_boolean_to_array(arrayobject *, char); /*proto*/
+static void __pyx_f_6spavro_11fast_binary_write_enum_to_array(arrayobject *, char, PyObject *); /*proto*/
+static void __pyx_f_6spavro_11fast_binary_write_array_to_array(arrayobject *, PyObject *, PyObject *); /*proto*/
+static void __pyx_f_6spavro_11fast_binary_write_map_to_array(arrayobject *, PyObject *, PyObject *); /*proto*/
 static void __pyx_f_6spavro_11fast_binary_create_promotions_for_union(PyObject *); /*proto*/
+static void __pyx_f_6spavro_11fast_binary_write_union_to_array(arrayobject *, PyObject *, PyObject *); /*proto*/
+static void __pyx_f_6spavro_11fast_binary_write_record_to_array(arrayobject *, PyObject *, PyObject *); /*proto*/
+static void __pyx_f_6spavro_11fast_binary_execute(arrayobject *, PyObject *, PyObject *); /*proto*/
 static PyObject *__Pyx_CFunc_void____object____long__long___to_py(void (*)(PyObject *, PY_LONG_LONG)); /*proto*/
 static PyObject *__Pyx_CFunc_object____object___to_py(PyObject *(*)(PyObject *)); /*proto*/
 static PyObject *__Pyx_CFunc_unicode____object___to_py(PyObject *(*)(PyObject *)); /*proto*/
@@ -1926,9 +2128,6 @@ static PyObject *__Pyx_CFunc_double____object___to_py(double (*)(PyObject *)); /
 static PyObject *__Pyx_CFunc_long__long____object___to_py(PY_LONG_LONG (*)(PyObject *)); /*proto*/
 static PyObject *__Pyx_CFunc_bytes____object___to_py(PyObject *(*)(PyObject *)); /*proto*/
 static PyObject *__Pyx_CFunc_float____object___to_py(float (*)(PyObject *)); /*proto*/
-static PyObject *__Pyx_CFunc_void____object____object___to_py(void (*)(PyObject *, PyObject *)); /*proto*/
-static PyObject *__Pyx_CFunc_void____object____float___to_py(void (*)(PyObject *, float)); /*proto*/
-static PyObject *__Pyx_CFunc_void____object____double___to_py(void (*)(PyObject *, double)); /*proto*/
 #define __Pyx_MODULE_NAME "spavro.fast_binary"
 extern int __pyx_module_is_main_spavro__fast_binary;
 int __pyx_module_is_main_spavro__fast_binary = 0;
@@ -1943,9 +2142,10 @@ static PyObject *__pyx_builtin_all;
 static PyObject *__pyx_builtin_any;
 static PyObject *__pyx_builtin_enumerate;
 static PyObject *__pyx_builtin_RuntimeError;
+static PyObject *__pyx_builtin_MemoryError;
 static const char __pyx_k_[] = "\001";
+static const char __pyx_k_B[] = "B";
 static const char __pyx_k_I[] = "!I";
-static const char __pyx_k_e[] = "e";
 static const char __pyx_k_i[] = "i";
 static const char __pyx_k_n[] = "n";
 static const char __pyx_k_fo[] = "fo";
@@ -2023,6 +2223,7 @@ static const char __pyx_k_KeyError[] = "KeyError";
 static const char __pyx_k_binascii[] = "binascii";
 static const char __pyx_k_checksum[] = "checksum";
 static const char __pyx_k_fullname[] = "fullname";
+static const char __pyx_k_iobuffer[] = "iobuffer";
 static const char __pyx_k_qualname[] = "__qualname__";
 static const char __pyx_k_read_int[] = "read_int";
 static const char __pyx_k_skip_int[] = "skip_int";
@@ -2043,7 +2244,6 @@ static const char __pyx_k_skip_null[] = "skip_null";
 static const char __pyx_k_skip_utf8[] = "skip_utf8";
 static const char __pyx_k_type_list[] = "type_list";
 static const char __pyx_k_write_int[] = "write_int";
-static const char __pyx_k_write_map[] = "write_map";
 static const char __pyx_k_CheckField[] = "CheckField";
 static const char __pyx_k_IndexError[] = "IndexError";
 static const char __pyx_k_WriteField[] = "WriteField";
@@ -2051,11 +2251,9 @@ static const char __pyx_k_avro_to_py[] = "avro_to_py";
 static const char __pyx_k_block_size[] = "block_size";
 static const char __pyx_k_check_type[] = "check_type";
 static const char __pyx_k_enum_check[] = "enum_check";
-static const char __pyx_k_enum_index[] = "enum_index";
 static const char __pyx_k_get_reader[] = "get_reader";
 static const char __pyx_k_get_writer[] = "get_writer";
 static const char __pyx_k_item_check[] = "item_check";
-static const char __pyx_k_item_count[] = "item_count";
 static const char __pyx_k_map_reader[] = "map_reader";
 static const char __pyx_k_namedtuple[] = "namedtuple";
 static const char __pyx_k_read_bytes[] = "read_bytes";
@@ -2063,16 +2261,15 @@ static const char __pyx_k_read_float[] = "read_float";
 static const char __pyx_k_read_items[] = "read_items";
 static const char __pyx_k_skip_bytes[] = "skip_bytes";
 static const char __pyx_k_skip_float[] = "skip_float";
-static const char __pyx_k_write_enum[] = "write_enum";
 static const char __pyx_k_write_long[] = "write_long";
 static const char __pyx_k_write_null[] = "write_null";
 static const char __pyx_k_write_utf8[] = "write_utf8";
+static const char __pyx_k_MemoryError[] = "MemoryError";
 static const char __pyx_k_array_check[] = "array_check";
 static const char __pyx_k_block_count[] = "block_count";
 static const char __pyx_k_cfunc_to_py[] = "cfunc.to_py";
 static const char __pyx_k_check_crc32[] = "check_crc32";
 static const char __pyx_k_collections[] = "collections";
-static const char __pyx_k_data_writer[] = "data_writer";
 static const char __pyx_k_enum_reader[] = "enum_reader";
 static const char __pyx_k_fixed_check[] = "fixed_check";
 static const char __pyx_k_item_reader[] = "item_reader";
@@ -2084,11 +2281,9 @@ static const char __pyx_k_schema_type[] = "schema_type";
 static const char __pyx_k_skip_double[] = "skip_double";
 static const char __pyx_k_union_check[] = "union_check";
 static const char __pyx_k_union_index[] = "union_index";
-static const char __pyx_k_write_array[] = "write_array";
 static const char __pyx_k_write_bytes[] = "write_bytes";
 static const char __pyx_k_write_crc32[] = "write_crc32";
 static const char __pyx_k_write_float[] = "write_float";
-static const char __pyx_k_write_union[] = "write_union";
 static const char __pyx_k_RuntimeError[] = "RuntimeError";
 static const char __pyx_k_array_reader[] = "array_reader";
 static const char __pyx_k_check_string[] = "check_string";
@@ -2107,7 +2302,6 @@ static const char __pyx_k_union_reader[] = "union_reader";
 static const char __pyx_k_union_schema[] = "union_schema";
 static const char __pyx_k_value_reader[] = "value_reader";
 static const char __pyx_k_write_double[] = "write_double";
-static const char __pyx_k_write_record[] = "write_record";
 static const char __pyx_k_INT_MAX_VALUE[] = "INT_MAX_VALUE";
 static const char __pyx_k_INT_MIN_VALUE[] = "INT_MIN_VALUE";
 static const char __pyx_k_custom_schema[] = "custom_schema";
@@ -2153,7 +2347,6 @@ static const char __pyx_k_FastBinaryEncoder[] = "FastBinaryEncoder";
 static const char __pyx_k_ReaderPlaceholder[] = "ReaderPlaceholder";
 static const char __pyx_k_Write_leaf_values[] = "Write leaf values.";
 static const char __pyx_k_WriterPlaceholder[] = "WriterPlaceholder";
-static const char __pyx_k_checked_int_write[] = "checked_int_write";
 static const char __pyx_k_make_array_reader[] = "make_array_reader";
 static const char __pyx_k_make_array_writer[] = "make_array_writer";
 static const char __pyx_k_make_double_check[] = "make_double_check";
@@ -2165,7 +2358,6 @@ static const char __pyx_k_make_record_check[] = "make_record_check";
 static const char __pyx_k_make_string_check[] = "make_string_check";
 static const char __pyx_k_make_union_reader[] = "make_union_reader";
 static const char __pyx_k_make_union_writer[] = "make_union_writer";
-static const char __pyx_k_checked_long_write[] = "checked_long_write";
 static const char __pyx_k_cline_in_traceback[] = "cline_in_traceback";
 static const char __pyx_k_make_boolean_check[] = "make_boolean_check";
 static const char __pyx_k_make_double_reader[] = "make_double_reader";
@@ -2176,26 +2368,23 @@ static const char __pyx_k_make_string_reader[] = "make_string_reader";
 static const char __pyx_k_make_string_writer[] = "make_string_writer";
 static const char __pyx_k_spavro_fast_binary[] = "spavro.fast_binary";
 static const char __pyx_k_writer_lookup_dict[] = "writer_lookup_dict";
-static const char __pyx_k_checked_write_fixed[] = "checked_write_fixed";
+static const char __pyx_k_Not_a_boolean_value[] = "{} - Not a boolean value.";
 static const char __pyx_k_make_boolean_reader[] = "make_boolean_reader";
 static const char __pyx_k_make_boolean_writer[] = "make_boolean_writer";
 static const char __pyx_k_make_default_reader[] = "make_default_reader";
 static const char __pyx_k_simple_writer_lookup[] = "simple_writer_lookup";
-static const char __pyx_k_checked_string_writer[] = "checked_string_writer";
 static const char __pyx_k_complex_writer_lookup[] = "complex_writer_lookup";
+static const char __pyx_k_is_not_a_string_value[] = "{} - is not a string value.";
 static const char __pyx_k_FastBinaryDecoder_read[] = "FastBinaryDecoder.read";
 static const char __pyx_k_FastBinaryDecoder_skip[] = "FastBinaryDecoder.skip";
-static const char __pyx_k_checked_boolean_writer[] = "checked_boolean_writer";
 static const char __pyx_k_FastBinaryEncoder_write[] = "FastBinaryEncoder.write";
 static const char __pyx_k_FastBinaryDecoder___init[] = "FastBinaryDecoder.__init__";
 static const char __pyx_k_FastBinaryEncoder___init[] = "FastBinaryEncoder.__init__";
 static const char __pyx_k_ReaderPlaceholder___call[] = "ReaderPlaceholder.__call__";
 static const char __pyx_k_ReaderPlaceholder___init[] = "ReaderPlaceholder.__init__";
-static const char __pyx_k_WriterPlaceholder___call[] = "WriterPlaceholder.__call__";
 static const char __pyx_k_WriterPlaceholder___init[] = "WriterPlaceholder.__init__";
 static const char __pyx_k_FastBinaryDecoder_read_int[] = "FastBinaryDecoder.read_int";
 static const char __pyx_k_FastBinaryDecoder_skip_int[] = "FastBinaryDecoder.skip_int";
-static const char __pyx_k_Not_a_boolean_value_Schema[] = "{} - Not a boolean value. Schema: {}";
 static const char __pyx_k_src_spavro_fast_binary_pyx[] = "src/spavro/fast_binary.pyx";
 static const char __pyx_k_FastBinaryDecoder_read_long[] = "FastBinaryDecoder.read_long";
 static const char __pyx_k_FastBinaryDecoder_read_null[] = "FastBinaryDecoder.read_null";
@@ -2214,18 +2403,17 @@ static const char __pyx_k_FastBinaryEncoder_write_null[] = "FastBinaryEncoder.wr
 static const char __pyx_k_FastBinaryEncoder_write_utf8[] = "FastBinaryEncoder.write_utf8";
 static const char __pyx_k_Invalid_type_in_union_Schema[] = "{} - Invalid type ({}) in union. Schema: {}";
 static const char __pyx_k_No_matching_schema_for_datum[] = "No matching schema for datum: {}";
-static const char __pyx_k_is_not_a_string_value_Schema[] = "{} - is not a string value. Schema: {}";
 static const char __pyx_k_FastBinaryDecoder_check_crc32[] = "FastBinaryDecoder.check_crc32";
 static const char __pyx_k_FastBinaryDecoder_read_double[] = "FastBinaryDecoder.read_double";
 static const char __pyx_k_FastBinaryDecoder_skip_double[] = "FastBinaryDecoder.skip_double";
 static const char __pyx_k_FastBinaryEncoder_write_bytes[] = "FastBinaryEncoder.write_bytes";
 static const char __pyx_k_FastBinaryEncoder_write_crc32[] = "FastBinaryEncoder.write_crc32";
 static const char __pyx_k_FastBinaryEncoder_write_float[] = "FastBinaryEncoder.write_float";
+static const char __pyx_k_Non_integer_value_or_overflow[] = "{} - Non integer value or overflow.";
 static const char __pyx_k_Pyx_CFunc_bint____object___to[] = "__Pyx_CFunc_bint____object___to_py.<locals>.wrap";
 static const char __pyx_k_make_byte_check_locals_lambda[] = "make_byte_check.<locals>.<lambda>";
 static const char __pyx_k_make_long_check_locals_lambda[] = "make_long_check.<locals>.<lambda>";
 static const char __pyx_k_make_map_reader_locals_lambda[] = "make_map_reader.<locals>.<lambda>";
-static const char __pyx_k_make_map_writer_locals_lambda[] = "make_map_writer.<locals>.<lambda>";
 static const char __pyx_k_make_null_check_locals_lambda[] = "make_null_check.<locals>.<lambda>";
 static const char __pyx_k_FastBinaryDecoder_read_boolean[] = "FastBinaryDecoder.read_boolean";
 static const char __pyx_k_FastBinaryDecoder_skip_boolean[] = "FastBinaryDecoder.skip_boolean";
@@ -2235,60 +2423,42 @@ static const char __pyx_k_Pyx_CFunc_double____object___t[] = "__Pyx_CFunc_double
 static const char __pyx_k_Pyx_CFunc_float____object___to[] = "__Pyx_CFunc_float____object___to_py.<locals>.wrap";
 static const char __pyx_k_Pyx_CFunc_long__long____object[] = "__Pyx_CFunc_long__long____object___to_py.<locals>.wrap";
 static const char __pyx_k_Pyx_CFunc_object____object___t[] = "__Pyx_CFunc_object____object___to_py.<locals>.wrap";
-static const char __pyx_k_Pyx_CFunc_void____object____do[] = "__Pyx_CFunc_void____object____double___to_py.<locals>.wrap";
-static const char __pyx_k_Pyx_CFunc_void____object____fl[] = "__Pyx_CFunc_void____object____float___to_py.<locals>.wrap";
 static const char __pyx_k_Pyx_CFunc_void____object____lo[] = "__Pyx_CFunc_void____object____long__long___to_py.<locals>.wrap";
-static const char __pyx_k_Pyx_CFunc_void____object____ob[] = "__Pyx_CFunc_void____object____object___to_py.<locals>.wrap";
 static const char __pyx_k_make_enum_reader_locals_lambda[] = "make_enum_reader.<locals>.<lambda>";
-static const char __pyx_k_make_enum_writer_locals_lambda[] = "make_enum_writer.<locals>.<lambda>";
 static const char __pyx_k_make_float_check_locals_lambda[] = "make_float_check.<locals>.<lambda>";
 static const char __pyx_k_make_skip_reader_locals_lambda[] = "make_skip_reader.<locals>.<lambda>";
 static const char __pyx_k_FastBinaryEncoder_write_boolean[] = "FastBinaryEncoder.write_boolean";
-static const char __pyx_k_Non_integer_value_or_overflow_S[] = "{} - Non integer value or overflow. Schema: {}";
-static const char __pyx_k_Schema_violation_value_overflow[] = "Schema violation, value overflow. {} can't be stored in schema: {}";
-static const char __pyx_k_Size_Mismatch_for_Fixed_data_Sc[] = "{} - Size Mismatch ({}) for Fixed data. Schema: {}";
+static const char __pyx_k_Schema_violation_value_overflow[] = "Schema violation, value overflow. {} can't be stored in schema";
 static const char __pyx_k_make_array_reader_locals_lambda[] = "make_array_reader.<locals>.<lambda>";
-static const char __pyx_k_make_array_writer_locals_lambda[] = "make_array_writer.<locals>.<lambda>";
 static const char __pyx_k_make_default_reader_locals_read[] = "make_default_reader.<locals>.read_default";
 static const char __pyx_k_make_double_check_locals_lambda[] = "make_double_check.<locals>.<lambda>";
 static const char __pyx_k_make_fixed_reader_locals_lambda[] = "make_fixed_reader.<locals>.<lambda>";
-static const char __pyx_k_make_long_writer_locals_checked[] = "make_long_writer.<locals>.checked_long_write";
 static const char __pyx_k_make_map_check_locals_map_check[] = "make_map_check.<locals>.map_check";
 static const char __pyx_k_make_record_check_locals_record[] = "make_record_check.<locals>.record_check";
-static const char __pyx_k_make_record_writer_locals_write[] = "make_record_writer.<locals>.write_record";
 static const char __pyx_k_make_union_reader_locals_lambda[] = "make_union_reader.<locals>.<lambda>";
-static const char __pyx_k_make_union_writer_locals_lambda[] = "make_union_writer.<locals>.<lambda>";
 static const char __pyx_k_make_union_writer_locals_simple[] = "make_union_writer.<locals>.simple_writer_lookup";
 static const char __pyx_k_Error_writing_record_schema_at_f[] = "Error writing record schema at fieldname: '{}', datum: '{}'";
 static const char __pyx_k_Fast_Cython_extension_for_readin[] = "Fast Cython extension for reading / writing and validating AVRO records.\n\nThe main edge this code has is that it parses the schema only once and creates\na reader/writer call tree from the schema shape. All reads and writes then\nno longer consult the schema saving lookups.";
-static const char __pyx_k_Schema_violation_is_not_an_examp[] = "Schema violation, {} is not an example of schema {}";
+static const char __pyx_k_Schema_violation_is_not_an_examp[] = "Schema violation, {} is not an example of integer";
 static const char __pyx_k_Unable_to_process_union_schema_u[] = "Unable to process union schema {}, union index '{}' doesn't exist. This is most likely because the read schema being used is not compatible with the write schema used to write the data.";
 static const char __pyx_k_create_promotions_for_union_loca[] = "create_promotions_for_union.<locals>.<lambda>";
 static const char __pyx_k_make_array_check_locals_array_ch[] = "make_array_check.<locals>.array_check";
 static const char __pyx_k_make_array_reader_locals_array_r[] = "make_array_reader.<locals>.array_reader";
-static const char __pyx_k_make_array_writer_locals_write_a[] = "make_array_writer.<locals>.write_array";
 static const char __pyx_k_make_boolean_check_locals_lambda[] = "make_boolean_check.<locals>.<lambda>";
-static const char __pyx_k_make_boolean_writer_locals_check[] = "make_boolean_writer.<locals>.checked_boolean_writer";
 static const char __pyx_k_make_default_reader_locals_lambd[] = "make_default_reader.<locals>.<lambda>";
 static const char __pyx_k_make_enum_check_locals_enum_chec[] = "make_enum_check.<locals>.enum_check";
 static const char __pyx_k_make_enum_reader_locals_enum_rea[] = "make_enum_reader.<locals>.enum_reader";
-static const char __pyx_k_make_enum_writer_locals_write_en[] = "make_enum_writer.<locals>.write_enum";
 static const char __pyx_k_make_fixed_check_locals_fixed_ch[] = "make_fixed_check.<locals>.fixed_check";
 static const char __pyx_k_make_fixed_reader_locals_fixed_r[] = "make_fixed_reader.<locals>.fixed_reader";
-static const char __pyx_k_make_fixed_writer_locals_checked[] = "make_fixed_writer.<locals>.checked_write_fixed";
-static const char __pyx_k_make_int_writer_locals_checked_i[] = "make_int_writer.<locals>.checked_int_write";
 static const char __pyx_k_make_map_reader_locals_map_reade[] = "make_map_reader.<locals>.map_reader";
-static const char __pyx_k_make_map_writer_locals_write_map[] = "make_map_writer.<locals>.write_map";
 static const char __pyx_k_make_record_reader_locals_lambda[] = "make_record_reader.<locals>.<lambda>";
 static const char __pyx_k_make_record_reader_locals_record[] = "make_record_reader.<locals>.record_reader";
-static const char __pyx_k_make_record_writer_locals_lambda[] = "make_record_writer.<locals>.<lambda>";
 static const char __pyx_k_make_skip_reader_locals_read_ski[] = "make_skip_reader.<locals>.read_skip";
-static const char __pyx_k_make_string_writer_locals_checke[] = "make_string_writer.<locals>.checked_string_writer";
 static const char __pyx_k_make_union_check_locals_union_ch[] = "make_union_check.<locals>.union_check";
 static const char __pyx_k_make_union_reader_locals_union_r[] = "make_union_reader.<locals>.union_reader";
 static const char __pyx_k_make_union_writer_locals_complex[] = "make_union_writer.<locals>.complex_writer_lookup";
-static const char __pyx_k_make_union_writer_locals_write_u[] = "make_union_writer.<locals>.write_union";
 static PyObject *__pyx_kp_b_;
+static PyObject *__pyx_n_s_B;
 static PyObject *__pyx_n_s_CheckField;
 static PyObject *__pyx_kp_s_Checksum_failure;
 static PyObject *__pyx_kp_s_Error_writing_record_schema_at_f;
@@ -2333,9 +2503,10 @@ static PyObject *__pyx_kp_s_Invalid_type_in_union_Schema;
 static PyObject *__pyx_n_s_KeyError;
 static PyObject *__pyx_n_s_LONG_MAX_VALUE;
 static PyObject *__pyx_n_s_LONG_MIN_VALUE;
+static PyObject *__pyx_n_s_MemoryError;
 static PyObject *__pyx_kp_s_No_matching_schema_for_datum;
-static PyObject *__pyx_kp_s_Non_integer_value_or_overflow_S;
-static PyObject *__pyx_kp_s_Not_a_boolean_value_Schema;
+static PyObject *__pyx_kp_s_Non_integer_value_or_overflow;
+static PyObject *__pyx_kp_s_Not_a_boolean_value;
 static PyObject *__pyx_n_s_Pyx_CFunc_bint____object___to;
 static PyObject *__pyx_n_s_Pyx_CFunc_bytes____object___to;
 static PyObject *__pyx_n_s_Pyx_CFunc_double____object___t;
@@ -2343,10 +2514,7 @@ static PyObject *__pyx_n_s_Pyx_CFunc_float____object___to;
 static PyObject *__pyx_n_s_Pyx_CFunc_long__long____object;
 static PyObject *__pyx_n_s_Pyx_CFunc_object____object___t;
 static PyObject *__pyx_n_s_Pyx_CFunc_unicode____object;
-static PyObject *__pyx_n_s_Pyx_CFunc_void____object____do;
-static PyObject *__pyx_n_s_Pyx_CFunc_void____object____fl;
 static PyObject *__pyx_n_s_Pyx_CFunc_void____object____lo;
-static PyObject *__pyx_n_s_Pyx_CFunc_void____object____ob;
 static PyObject *__pyx_n_s_ReadField;
 static PyObject *__pyx_kp_s_Read_leaf_values;
 static PyObject *__pyx_n_s_ReaderPlaceholder;
@@ -2355,13 +2523,11 @@ static PyObject *__pyx_n_s_ReaderPlaceholder___init;
 static PyObject *__pyx_n_s_RuntimeError;
 static PyObject *__pyx_kp_s_Schema_violation_is_not_an_examp;
 static PyObject *__pyx_kp_s_Schema_violation_value_overflow;
-static PyObject *__pyx_kp_s_Size_Mismatch_for_Fixed_data_Sc;
 static PyObject *__pyx_n_s_TypeError;
 static PyObject *__pyx_kp_s_Unable_to_process_union_schema_u;
 static PyObject *__pyx_n_s_WriteField;
 static PyObject *__pyx_kp_s_Write_leaf_values;
 static PyObject *__pyx_n_s_WriterPlaceholder;
-static PyObject *__pyx_n_s_WriterPlaceholder___call;
 static PyObject *__pyx_n_s_WriterPlaceholder___init;
 static PyObject *__pyx_n_s__10;
 static PyObject *__pyx_kp_s__19;
@@ -2386,11 +2552,6 @@ static PyObject *__pyx_n_s_check_crc32;
 static PyObject *__pyx_n_s_check_string;
 static PyObject *__pyx_n_s_check_type;
 static PyObject *__pyx_n_s_check_type_map;
-static PyObject *__pyx_n_s_checked_boolean_writer;
-static PyObject *__pyx_n_s_checked_int_write;
-static PyObject *__pyx_n_s_checked_long_write;
-static PyObject *__pyx_n_s_checked_string_writer;
-static PyObject *__pyx_n_s_checked_write_fixed;
 static PyObject *__pyx_n_s_checksum;
 static PyObject *__pyx_n_s_cline_in_traceback;
 static PyObject *__pyx_n_s_collections;
@@ -2399,18 +2560,15 @@ static PyObject *__pyx_n_s_count;
 static PyObject *__pyx_n_s_crc32;
 static PyObject *__pyx_n_s_create_promotions_for_union_loca;
 static PyObject *__pyx_n_s_custom_schema;
-static PyObject *__pyx_n_s_data_writer;
 static PyObject *__pyx_n_s_datum;
 static PyObject *__pyx_n_s_default;
 static PyObject *__pyx_n_s_doc;
 static PyObject *__pyx_n_s_double;
 static PyObject *__pyx_n_u_double;
-static PyObject *__pyx_n_s_e;
 static PyObject *__pyx_n_s_encode;
 static PyObject *__pyx_n_s_enum;
 static PyObject *__pyx_n_u_enum;
 static PyObject *__pyx_n_s_enum_check;
-static PyObject *__pyx_n_s_enum_index;
 static PyObject *__pyx_n_s_enum_reader;
 static PyObject *__pyx_n_s_enumerate;
 static PyObject *__pyx_n_s_field;
@@ -2436,10 +2594,10 @@ static PyObject *__pyx_n_s_init;
 static PyObject *__pyx_n_s_int;
 static PyObject *__pyx_n_u_int;
 static PyObject *__pyx_n_s_integer_types;
-static PyObject *__pyx_kp_s_is_not_a_string_value_Schema;
+static PyObject *__pyx_n_s_iobuffer;
+static PyObject *__pyx_kp_s_is_not_a_string_value;
 static PyObject *__pyx_n_s_item;
 static PyObject *__pyx_n_s_item_check;
-static PyObject *__pyx_n_s_item_count;
 static PyObject *__pyx_n_s_item_reader;
 static PyObject *__pyx_n_s_item_writer;
 static PyObject *__pyx_n_s_items;
@@ -2457,13 +2615,10 @@ static PyObject *__pyx_n_s_make_array_reader;
 static PyObject *__pyx_n_s_make_array_reader_locals_array_r;
 static PyObject *__pyx_n_s_make_array_reader_locals_lambda;
 static PyObject *__pyx_n_s_make_array_writer;
-static PyObject *__pyx_n_s_make_array_writer_locals_lambda;
-static PyObject *__pyx_n_s_make_array_writer_locals_write_a;
 static PyObject *__pyx_n_s_make_boolean_check;
 static PyObject *__pyx_n_s_make_boolean_check_locals_lambda;
 static PyObject *__pyx_n_s_make_boolean_reader;
 static PyObject *__pyx_n_s_make_boolean_writer;
-static PyObject *__pyx_n_s_make_boolean_writer_locals_check;
 static PyObject *__pyx_n_s_make_byte_check;
 static PyObject *__pyx_n_s_make_byte_check_locals_lambda;
 static PyObject *__pyx_n_s_make_byte_reader;
@@ -2481,34 +2636,27 @@ static PyObject *__pyx_n_s_make_enum_reader;
 static PyObject *__pyx_n_s_make_enum_reader_locals_enum_rea;
 static PyObject *__pyx_n_s_make_enum_reader_locals_lambda;
 static PyObject *__pyx_n_s_make_enum_writer;
-static PyObject *__pyx_n_s_make_enum_writer_locals_lambda;
-static PyObject *__pyx_n_s_make_enum_writer_locals_write_en;
 static PyObject *__pyx_n_s_make_fixed_check;
 static PyObject *__pyx_n_s_make_fixed_check_locals_fixed_ch;
 static PyObject *__pyx_n_s_make_fixed_reader;
 static PyObject *__pyx_n_s_make_fixed_reader_locals_fixed_r;
 static PyObject *__pyx_n_s_make_fixed_reader_locals_lambda;
 static PyObject *__pyx_n_s_make_fixed_writer;
-static PyObject *__pyx_n_s_make_fixed_writer_locals_checked;
 static PyObject *__pyx_n_s_make_float_check;
 static PyObject *__pyx_n_s_make_float_check_locals_lambda;
 static PyObject *__pyx_n_s_make_float_reader;
 static PyObject *__pyx_n_s_make_float_writer;
 static PyObject *__pyx_n_s_make_int_writer;
-static PyObject *__pyx_n_s_make_int_writer_locals_checked_i;
 static PyObject *__pyx_n_s_make_long_check;
 static PyObject *__pyx_n_s_make_long_check_locals_lambda;
 static PyObject *__pyx_n_s_make_long_reader;
 static PyObject *__pyx_n_s_make_long_writer;
-static PyObject *__pyx_n_s_make_long_writer_locals_checked;
 static PyObject *__pyx_n_s_make_map_check;
 static PyObject *__pyx_n_s_make_map_check_locals_map_check;
 static PyObject *__pyx_n_s_make_map_reader;
 static PyObject *__pyx_n_s_make_map_reader_locals_lambda;
 static PyObject *__pyx_n_s_make_map_reader_locals_map_reade;
 static PyObject *__pyx_n_s_make_map_writer;
-static PyObject *__pyx_n_s_make_map_writer_locals_lambda;
-static PyObject *__pyx_n_s_make_map_writer_locals_write_map;
 static PyObject *__pyx_n_s_make_null_check;
 static PyObject *__pyx_n_s_make_null_check_locals_lambda;
 static PyObject *__pyx_n_s_make_null_reader;
@@ -2519,15 +2667,12 @@ static PyObject *__pyx_n_s_make_record_reader;
 static PyObject *__pyx_n_s_make_record_reader_locals_lambda;
 static PyObject *__pyx_n_s_make_record_reader_locals_record;
 static PyObject *__pyx_n_s_make_record_writer;
-static PyObject *__pyx_n_s_make_record_writer_locals_lambda;
-static PyObject *__pyx_n_s_make_record_writer_locals_write;
 static PyObject *__pyx_n_s_make_skip_reader;
 static PyObject *__pyx_n_s_make_skip_reader_locals_lambda;
 static PyObject *__pyx_n_s_make_skip_reader_locals_read_ski;
 static PyObject *__pyx_n_s_make_string_check;
 static PyObject *__pyx_n_s_make_string_reader;
 static PyObject *__pyx_n_s_make_string_writer;
-static PyObject *__pyx_n_s_make_string_writer_locals_checke;
 static PyObject *__pyx_n_s_make_union_check;
 static PyObject *__pyx_n_s_make_union_check_locals_union_ch;
 static PyObject *__pyx_n_s_make_union_reader;
@@ -2535,9 +2680,7 @@ static PyObject *__pyx_n_s_make_union_reader_locals_lambda;
 static PyObject *__pyx_n_s_make_union_reader_locals_union_r;
 static PyObject *__pyx_n_s_make_union_writer;
 static PyObject *__pyx_n_s_make_union_writer_locals_complex;
-static PyObject *__pyx_n_s_make_union_writer_locals_lambda;
 static PyObject *__pyx_n_s_make_union_writer_locals_simple;
-static PyObject *__pyx_n_s_make_union_writer_locals_write_u;
 static PyObject *__pyx_n_s_map;
 static PyObject *__pyx_n_u_map;
 static PyObject *__pyx_n_s_map_check;
@@ -2628,19 +2771,14 @@ static PyObject *__pyx_n_s_value_reader;
 static PyObject *__pyx_n_s_values;
 static PyObject *__pyx_n_s_wrap;
 static PyObject *__pyx_n_s_write;
-static PyObject *__pyx_n_s_write_array;
 static PyObject *__pyx_n_s_write_boolean;
 static PyObject *__pyx_n_s_write_bytes;
 static PyObject *__pyx_n_s_write_crc32;
 static PyObject *__pyx_n_s_write_double;
-static PyObject *__pyx_n_s_write_enum;
 static PyObject *__pyx_n_s_write_float;
 static PyObject *__pyx_n_s_write_int;
 static PyObject *__pyx_n_s_write_long;
-static PyObject *__pyx_n_s_write_map;
 static PyObject *__pyx_n_s_write_null;
-static PyObject *__pyx_n_s_write_record;
-static PyObject *__pyx_n_s_write_union;
 static PyObject *__pyx_n_s_write_utf8;
 static PyObject *__pyx_n_s_writer;
 static PyObject *__pyx_n_s_writer_lookup;
@@ -2713,37 +2851,21 @@ static PyObject *__pyx_lambda_funcdef_lambda14(PyObject *__pyx_self, PyObject *_
 static PyObject *__pyx_lambda_funcdef_lambda15(PyObject *__pyx_self, PyObject *__pyx_v_output_buffer, PyObject *__pyx_v_val); /* proto */
 static PyObject *__pyx_pf_6spavro_11fast_binary_17make_union_writer_simple_writer_lookup(PyObject *__pyx_self, PyObject *__pyx_v_datum); /* proto */
 static PyObject *__pyx_pf_6spavro_11fast_binary_17make_union_writer_2complex_writer_lookup(PyObject *__pyx_self, PyObject *__pyx_v_datum); /* proto */
-static PyObject *__pyx_pf_6spavro_11fast_binary_17make_union_writer_4write_union(PyObject *__pyx_self, PyObject *__pyx_v_outbuf, PyObject *__pyx_v_datum); /* proto */
-static PyObject *__pyx_lambda_funcdef_lambda16(PyObject *__pyx_self); /* proto */
 static PyObject *__pyx_pf_6spavro_11fast_binary_66make_union_writer(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_union_schema); /* proto */
-static PyObject *__pyx_pf_6spavro_11fast_binary_16make_enum_writer_write_enum(PyObject *__pyx_self, PyObject *__pyx_v_outbuf, PyObject *__pyx_v_datum); /* proto */
-static PyObject *__pyx_lambda_funcdef_lambda17(PyObject *__pyx_self); /* proto */
-static PyObject *__pyx_pf_6spavro_11fast_binary_68make_enum_writer(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_schema); /* proto */
-static PyObject *__pyx_pf_6spavro_11fast_binary_18make_record_writer_write_record(PyObject *__pyx_self, PyObject *__pyx_v_outbuf, PyObject *__pyx_v_datum); /* proto */
-static PyObject *__pyx_lambda_funcdef_lambda18(PyObject *__pyx_self); /* proto */
-static PyObject *__pyx_pf_6spavro_11fast_binary_70make_record_writer(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_schema); /* proto */
-static PyObject *__pyx_pf_6spavro_11fast_binary_17make_array_writer_write_array(PyObject *__pyx_self, PyObject *__pyx_v_outbuf, PyObject *__pyx_v_datum); /* proto */
-static PyObject *__pyx_lambda_funcdef_lambda19(PyObject *__pyx_self); /* proto */
-static PyObject *__pyx_pf_6spavro_11fast_binary_72make_array_writer(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_schema); /* proto */
-static PyObject *__pyx_pf_6spavro_11fast_binary_15make_map_writer_write_map(PyObject *__pyx_self, PyObject *__pyx_v_outbuf, PyObject *__pyx_v_datum); /* proto */
-static PyObject *__pyx_lambda_funcdef_lambda20(PyObject *__pyx_self); /* proto */
-static PyObject *__pyx_pf_6spavro_11fast_binary_74make_map_writer(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_schema); /* proto */
-static PyObject *__pyx_pf_6spavro_11fast_binary_19make_boolean_writer_checked_boolean_writer(PyObject *__pyx_self, PyObject *__pyx_v_outbuf, PyObject *__pyx_v_datum); /* proto */
-static PyObject *__pyx_pf_6spavro_11fast_binary_76make_boolean_writer(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_schema); /* proto */
-static PyObject *__pyx_pf_6spavro_11fast_binary_17make_fixed_writer_checked_write_fixed(PyObject *__pyx_self, PyObject *__pyx_v_outbuf, PyObject *__pyx_v_datum); /* proto */
-static PyObject *__pyx_pf_6spavro_11fast_binary_78make_fixed_writer(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_schema); /* proto */
-static PyObject *__pyx_pf_6spavro_11fast_binary_15make_int_writer_checked_int_write(PyObject *__pyx_self, PyObject *__pyx_v_outbuf, PyObject *__pyx_v_datum); /* proto */
-static PyObject *__pyx_pf_6spavro_11fast_binary_80make_int_writer(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_schema); /* proto */
-static PyObject *__pyx_pf_6spavro_11fast_binary_16make_long_writer_checked_long_write(PyObject *__pyx_self, PyObject *__pyx_v_outbuf, PyObject *__pyx_v_datum); /* proto */
-static PyObject *__pyx_pf_6spavro_11fast_binary_82make_long_writer(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_schema); /* proto */
-static PyObject *__pyx_pf_6spavro_11fast_binary_18make_string_writer_checked_string_writer(PyObject *__pyx_self, PyObject *__pyx_v_outbuf, PyObject *__pyx_v_datum); /* proto */
-static PyObject *__pyx_pf_6spavro_11fast_binary_84make_string_writer(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_schema); /* proto */
-static PyObject *__pyx_pf_6spavro_11fast_binary_86make_byte_writer(CYTHON_UNUSED PyObject *__pyx_self, CYTHON_UNUSED PyObject *__pyx_v_schema); /* proto */
-static PyObject *__pyx_pf_6spavro_11fast_binary_88make_float_writer(CYTHON_UNUSED PyObject *__pyx_self, CYTHON_UNUSED PyObject *__pyx_v_schema); /* proto */
-static PyObject *__pyx_pf_6spavro_11fast_binary_90make_double_writer(CYTHON_UNUSED PyObject *__pyx_self, CYTHON_UNUSED PyObject *__pyx_v_schema); /* proto */
-static PyObject *__pyx_pf_6spavro_11fast_binary_92make_null_writer(CYTHON_UNUSED PyObject *__pyx_self, CYTHON_UNUSED PyObject *__pyx_v_schema); /* proto */
+static PyObject *__pyx_pf_6spavro_11fast_binary_68make_record_writer(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_schema); /* proto */
+static PyObject *__pyx_pf_6spavro_11fast_binary_70make_null_writer(CYTHON_UNUSED PyObject *__pyx_self, CYTHON_UNUSED PyObject *__pyx_v_schema); /* proto */
+static PyObject *__pyx_pf_6spavro_11fast_binary_72make_string_writer(CYTHON_UNUSED PyObject *__pyx_self, CYTHON_UNUSED PyObject *__pyx_v_schema); /* proto */
+static PyObject *__pyx_pf_6spavro_11fast_binary_74make_boolean_writer(CYTHON_UNUSED PyObject *__pyx_self, CYTHON_UNUSED PyObject *__pyx_v_schema); /* proto */
+static PyObject *__pyx_pf_6spavro_11fast_binary_76make_double_writer(CYTHON_UNUSED PyObject *__pyx_self, CYTHON_UNUSED PyObject *__pyx_v_schema); /* proto */
+static PyObject *__pyx_pf_6spavro_11fast_binary_78make_float_writer(CYTHON_UNUSED PyObject *__pyx_self, CYTHON_UNUSED PyObject *__pyx_v_schema); /* proto */
+static PyObject *__pyx_pf_6spavro_11fast_binary_80make_long_writer(CYTHON_UNUSED PyObject *__pyx_self, CYTHON_UNUSED PyObject *__pyx_v_schema); /* proto */
+static PyObject *__pyx_pf_6spavro_11fast_binary_82make_byte_writer(CYTHON_UNUSED PyObject *__pyx_self, CYTHON_UNUSED PyObject *__pyx_v_schema); /* proto */
+static PyObject *__pyx_pf_6spavro_11fast_binary_84make_int_writer(CYTHON_UNUSED PyObject *__pyx_self, CYTHON_UNUSED PyObject *__pyx_v_schema); /* proto */
+static PyObject *__pyx_pf_6spavro_11fast_binary_86make_fixed_writer(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_schema); /* proto */
+static PyObject *__pyx_pf_6spavro_11fast_binary_88make_enum_writer(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_schema); /* proto */
+static PyObject *__pyx_pf_6spavro_11fast_binary_90make_array_writer(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_schema); /* proto */
+static PyObject *__pyx_pf_6spavro_11fast_binary_92make_map_writer(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_schema); /* proto */
 static PyObject *__pyx_pf_6spavro_11fast_binary_17WriterPlaceholder___init__(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_self); /* proto */
-static PyObject *__pyx_pf_6spavro_11fast_binary_17WriterPlaceholder_2__call__(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_self, PyObject *__pyx_v_fo, PyObject *__pyx_v_val); /* proto */
 static PyObject *__pyx_pf_6spavro_11fast_binary_94get_writer(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_schema); /* proto */
 static PyObject *__pyx_pf_6spavro_11fast_binary_17FastBinaryEncoder___init__(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_self, PyObject *__pyx_v_writer); /* proto */
 static PyObject *__pyx_pf_6spavro_11fast_binary_17FastBinaryEncoder_2write(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_self, PyObject *__pyx_v_datum); /* proto */
@@ -2776,6 +2898,9 @@ static PyObject *__pyx_pf_6spavro_11fast_binary_17FastBinaryDecoder_32skip_doubl
 static PyObject *__pyx_pf_6spavro_11fast_binary_17FastBinaryDecoder_34skip_bytes(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_self); /* proto */
 static PyObject *__pyx_pf_6spavro_11fast_binary_17FastBinaryDecoder_36skip_utf8(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_self); /* proto */
 static PyObject *__pyx_pf_6spavro_11fast_binary_17FastBinaryDecoder_38skip(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_self, PyObject *__pyx_v_n); /* proto */
+static PyObject *__pyx_pf_6spavro_11fast_binary_96write(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_iobuffer, PyObject *__pyx_v_datum, PyObject *__pyx_v_writer, CYTHON_UNUSED PyObject *__pyx_v_schema); /* proto */
+static int __pyx_pf_7cpython_5array_5array___getbuffer__(arrayobject *__pyx_v_self, Py_buffer *__pyx_v_info, CYTHON_UNUSED int __pyx_v_flags); /* proto */
+static void __pyx_pf_7cpython_5array_5array_2__releasebuffer__(CYTHON_UNUSED arrayobject *__pyx_v_self, Py_buffer *__pyx_v_info); /* proto */
 static PyObject *__pyx_pf_11cfunc_dot_to_py_48__Pyx_CFunc_void____object____long__long___to_py_wrap(PyObject *__pyx_self, PyObject *__pyx_v_outbuf, PY_LONG_LONG __pyx_v_signed_datum); /* proto */
 static PyObject *__pyx_pf_11cfunc_dot_to_py_36__Pyx_CFunc_object____object___to_py_wrap(PyObject *__pyx_self, PyObject *__pyx_v_fo); /* proto */
 static PyObject *__pyx_pf_11cfunc_dot_to_py_37__Pyx_CFunc_unicode____object___to_py_wrap(PyObject *__pyx_self, PyObject *__pyx_v_fo); /* proto */
@@ -2784,9 +2909,6 @@ static PyObject *__pyx_pf_11cfunc_dot_to_py_36__Pyx_CFunc_double____object___to_
 static PyObject *__pyx_pf_11cfunc_dot_to_py_40__Pyx_CFunc_long__long____object___to_py_wrap(PyObject *__pyx_self, PyObject *__pyx_v_fo); /* proto */
 static PyObject *__pyx_pf_11cfunc_dot_to_py_35__Pyx_CFunc_bytes____object___to_py_wrap(PyObject *__pyx_self, PyObject *__pyx_v_fo); /* proto */
 static PyObject *__pyx_pf_11cfunc_dot_to_py_35__Pyx_CFunc_float____object___to_py_wrap(PyObject *__pyx_self, PyObject *__pyx_v_fo); /* proto */
-static PyObject *__pyx_pf_11cfunc_dot_to_py_44__Pyx_CFunc_void____object____object___to_py_wrap(PyObject *__pyx_self, PyObject *__pyx_v_outbuf, PyObject *__pyx_v_datum); /* proto */
-static PyObject *__pyx_pf_11cfunc_dot_to_py_43__Pyx_CFunc_void____object____float___to_py_wrap(PyObject *__pyx_self, PyObject *__pyx_v_outbuf, float __pyx_v_datum); /* proto */
-static PyObject *__pyx_pf_11cfunc_dot_to_py_44__Pyx_CFunc_void____object____double___to_py_wrap(PyObject *__pyx_self, PyObject *__pyx_v_outbuf, double __pyx_v_datum); /* proto */
 static PyObject *__pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct__make_union_reader(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
 static PyObject *__pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_1_make_record_reader(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
 static PyObject *__pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_2_make_enum_reader(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
@@ -2803,15 +2925,6 @@ static PyObject *__pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_12_make_f
 static PyObject *__pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_13_make_map_check(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
 static PyObject *__pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_14___pyx_f_6spavro_11fast_binary_create_promotions_for_union(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
 static PyObject *__pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_15_make_union_writer(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
-static PyObject *__pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_16_make_enum_writer(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
-static PyObject *__pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_17_make_record_writer(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
-static PyObject *__pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_18_make_array_writer(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
-static PyObject *__pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_19_make_map_writer(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
-static PyObject *__pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_20_make_boolean_writer(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
-static PyObject *__pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_21_make_fixed_writer(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
-static PyObject *__pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_22_make_int_writer(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
-static PyObject *__pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_23_make_long_writer(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
-static PyObject *__pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_24_make_string_writer(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
 static PyObject *__pyx_tp_new___pyx_scope_struct____Pyx_CFunc_void____object____long__long___to_py(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
 static PyObject *__pyx_tp_new___pyx_scope_struct____Pyx_CFunc_object____object___to_py(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
 static PyObject *__pyx_tp_new___pyx_scope_struct____Pyx_CFunc_unicode____object___to_py(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
@@ -2820,15 +2933,23 @@ static PyObject *__pyx_tp_new___pyx_scope_struct____Pyx_CFunc_double____object__
 static PyObject *__pyx_tp_new___pyx_scope_struct____Pyx_CFunc_long__long____object___to_py(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
 static PyObject *__pyx_tp_new___pyx_scope_struct____Pyx_CFunc_bytes____object___to_py(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
 static PyObject *__pyx_tp_new___pyx_scope_struct____Pyx_CFunc_float____object___to_py(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
-static PyObject *__pyx_tp_new___pyx_scope_struct____Pyx_CFunc_void____object____object___to_py(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
-static PyObject *__pyx_tp_new___pyx_scope_struct____Pyx_CFunc_void____object____float___to_py(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
-static PyObject *__pyx_tp_new___pyx_scope_struct____Pyx_CFunc_void____object____double___to_py(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
+static __Pyx_CachedCFunction __pyx_umethod_PyDict_Type_get = {0, &__pyx_n_s_get, 0, 0, 0};
 static __Pyx_CachedCFunction __pyx_umethod_PyList_Type_count = {0, &__pyx_n_s_count, 0, 0, 0};
 static __Pyx_CachedCFunction __pyx_umethod_PyList_Type_index = {0, &__pyx_n_s_index, 0, 0, 0};
 static PyObject *__pyx_int_0;
 static PyObject *__pyx_int_1;
+static PyObject *__pyx_int_2;
+static PyObject *__pyx_int_3;
 static PyObject *__pyx_int_4;
+static PyObject *__pyx_int_5;
+static PyObject *__pyx_int_6;
+static PyObject *__pyx_int_7;
 static PyObject *__pyx_int_8;
+static PyObject *__pyx_int_9;
+static PyObject *__pyx_int_10;
+static PyObject *__pyx_int_11;
+static PyObject *__pyx_int_12;
+static PyObject *__pyx_int_13;
 static PyObject *__pyx_int_2147483647;
 static PyObject *__pyx_int_4294967295;
 static PyObject *__pyx_int_9223372036854775807;
@@ -2851,16 +2972,16 @@ static PyObject *__pyx_tuple__30;
 static PyObject *__pyx_tuple__32;
 static PyObject *__pyx_tuple__34;
 static PyObject *__pyx_tuple__36;
-static PyObject *__pyx_tuple__38;
-static PyObject *__pyx_tuple__40;
-static PyObject *__pyx_tuple__42;
-static PyObject *__pyx_tuple__44;
-static PyObject *__pyx_tuple__46;
-static PyObject *__pyx_tuple__48;
-static PyObject *__pyx_tuple__50;
-static PyObject *__pyx_tuple__52;
-static PyObject *__pyx_tuple__54;
-static PyObject *__pyx_tuple__56;
+static PyObject *__pyx_tuple__37;
+static PyObject *__pyx_tuple__39;
+static PyObject *__pyx_tuple__41;
+static PyObject *__pyx_tuple__43;
+static PyObject *__pyx_tuple__45;
+static PyObject *__pyx_tuple__47;
+static PyObject *__pyx_tuple__49;
+static PyObject *__pyx_tuple__51;
+static PyObject *__pyx_tuple__53;
+static PyObject *__pyx_tuple__55;
 static PyObject *__pyx_tuple__57;
 static PyObject *__pyx_tuple__59;
 static PyObject *__pyx_tuple__61;
@@ -2875,23 +2996,23 @@ static PyObject *__pyx_tuple__77;
 static PyObject *__pyx_tuple__79;
 static PyObject *__pyx_tuple__81;
 static PyObject *__pyx_tuple__83;
-static PyObject *__pyx_tuple__85;
-static PyObject *__pyx_tuple__87;
-static PyObject *__pyx_tuple__89;
-static PyObject *__pyx_tuple__91;
-static PyObject *__pyx_tuple__93;
-static PyObject *__pyx_tuple__95;
-static PyObject *__pyx_tuple__97;
-static PyObject *__pyx_tuple__99;
+static PyObject *__pyx_tuple__84;
+static PyObject *__pyx_tuple__86;
+static PyObject *__pyx_tuple__88;
+static PyObject *__pyx_tuple__90;
+static PyObject *__pyx_tuple__92;
+static PyObject *__pyx_tuple__94;
+static PyObject *__pyx_tuple__96;
+static PyObject *__pyx_tuple__98;
 static PyObject *__pyx_codeobj__3;
 static PyObject *__pyx_codeobj__5;
 static PyObject *__pyx_codeobj__7;
 static PyObject *__pyx_codeobj__9;
-static PyObject *__pyx_tuple__101;
-static PyObject *__pyx_tuple__103;
-static PyObject *__pyx_tuple__105;
-static PyObject *__pyx_tuple__107;
-static PyObject *__pyx_tuple__109;
+static PyObject *__pyx_tuple__100;
+static PyObject *__pyx_tuple__102;
+static PyObject *__pyx_tuple__104;
+static PyObject *__pyx_tuple__106;
+static PyObject *__pyx_tuple__108;
 static PyObject *__pyx_tuple__110;
 static PyObject *__pyx_tuple__112;
 static PyObject *__pyx_tuple__114;
@@ -2913,8 +3034,9 @@ static PyObject *__pyx_tuple__144;
 static PyObject *__pyx_tuple__146;
 static PyObject *__pyx_tuple__148;
 static PyObject *__pyx_tuple__150;
-static PyObject *__pyx_tuple__152;
-static PyObject *__pyx_tuple__154;
+static PyObject *__pyx_tuple__151;
+static PyObject *__pyx_tuple__153;
+static PyObject *__pyx_tuple__155;
 static PyObject *__pyx_tuple__156;
 static PyObject *__pyx_tuple__158;
 static PyObject *__pyx_tuple__160;
@@ -2926,22 +3048,21 @@ static PyObject *__pyx_tuple__170;
 static PyObject *__pyx_tuple__172;
 static PyObject *__pyx_tuple__174;
 static PyObject *__pyx_tuple__176;
-static PyObject *__pyx_tuple__177;
+static PyObject *__pyx_tuple__178;
 static PyObject *__pyx_tuple__179;
 static PyObject *__pyx_tuple__181;
 static PyObject *__pyx_tuple__183;
-static PyObject *__pyx_tuple__184;
-static PyObject *__pyx_tuple__186;
-static PyObject *__pyx_tuple__188;
-static PyObject *__pyx_tuple__190;
-static PyObject *__pyx_tuple__192;
-static PyObject *__pyx_tuple__194;
-static PyObject *__pyx_tuple__196;
-static PyObject *__pyx_tuple__198;
-static PyObject *__pyx_tuple__200;
-static PyObject *__pyx_tuple__202;
-static PyObject *__pyx_tuple__204;
-static PyObject *__pyx_tuple__206;
+static PyObject *__pyx_tuple__185;
+static PyObject *__pyx_tuple__187;
+static PyObject *__pyx_tuple__189;
+static PyObject *__pyx_tuple__191;
+static PyObject *__pyx_tuple__193;
+static PyObject *__pyx_tuple__195;
+static PyObject *__pyx_tuple__197;
+static PyObject *__pyx_tuple__199;
+static PyObject *__pyx_tuple__201;
+static PyObject *__pyx_tuple__203;
+static PyObject *__pyx_tuple__205;
 static PyObject *__pyx_tuple__207;
 static PyObject *__pyx_tuple__209;
 static PyObject *__pyx_tuple__211;
@@ -2949,19 +3070,6 @@ static PyObject *__pyx_tuple__213;
 static PyObject *__pyx_tuple__215;
 static PyObject *__pyx_tuple__217;
 static PyObject *__pyx_tuple__219;
-static PyObject *__pyx_tuple__221;
-static PyObject *__pyx_tuple__223;
-static PyObject *__pyx_tuple__225;
-static PyObject *__pyx_tuple__227;
-static PyObject *__pyx_tuple__229;
-static PyObject *__pyx_tuple__231;
-static PyObject *__pyx_tuple__233;
-static PyObject *__pyx_tuple__235;
-static PyObject *__pyx_tuple__237;
-static PyObject *__pyx_tuple__239;
-static PyObject *__pyx_tuple__241;
-static PyObject *__pyx_tuple__243;
-static PyObject *__pyx_tuple__245;
 static PyObject *__pyx_codeobj__12;
 static PyObject *__pyx_codeobj__14;
 static PyObject *__pyx_codeobj__16;
@@ -2974,16 +3082,16 @@ static PyObject *__pyx_codeobj__29;
 static PyObject *__pyx_codeobj__31;
 static PyObject *__pyx_codeobj__33;
 static PyObject *__pyx_codeobj__35;
-static PyObject *__pyx_codeobj__37;
-static PyObject *__pyx_codeobj__39;
-static PyObject *__pyx_codeobj__41;
-static PyObject *__pyx_codeobj__43;
-static PyObject *__pyx_codeobj__45;
-static PyObject *__pyx_codeobj__47;
-static PyObject *__pyx_codeobj__49;
-static PyObject *__pyx_codeobj__51;
-static PyObject *__pyx_codeobj__53;
-static PyObject *__pyx_codeobj__55;
+static PyObject *__pyx_codeobj__38;
+static PyObject *__pyx_codeobj__40;
+static PyObject *__pyx_codeobj__42;
+static PyObject *__pyx_codeobj__44;
+static PyObject *__pyx_codeobj__46;
+static PyObject *__pyx_codeobj__48;
+static PyObject *__pyx_codeobj__50;
+static PyObject *__pyx_codeobj__52;
+static PyObject *__pyx_codeobj__54;
+static PyObject *__pyx_codeobj__56;
 static PyObject *__pyx_codeobj__58;
 static PyObject *__pyx_codeobj__60;
 static PyObject *__pyx_codeobj__62;
@@ -2997,19 +3105,19 @@ static PyObject *__pyx_codeobj__76;
 static PyObject *__pyx_codeobj__78;
 static PyObject *__pyx_codeobj__80;
 static PyObject *__pyx_codeobj__82;
-static PyObject *__pyx_codeobj__84;
-static PyObject *__pyx_codeobj__86;
-static PyObject *__pyx_codeobj__88;
-static PyObject *__pyx_codeobj__90;
-static PyObject *__pyx_codeobj__92;
-static PyObject *__pyx_codeobj__94;
-static PyObject *__pyx_codeobj__96;
-static PyObject *__pyx_codeobj__98;
-static PyObject *__pyx_codeobj__100;
-static PyObject *__pyx_codeobj__102;
-static PyObject *__pyx_codeobj__104;
-static PyObject *__pyx_codeobj__106;
-static PyObject *__pyx_codeobj__108;
+static PyObject *__pyx_codeobj__85;
+static PyObject *__pyx_codeobj__87;
+static PyObject *__pyx_codeobj__89;
+static PyObject *__pyx_codeobj__91;
+static PyObject *__pyx_codeobj__93;
+static PyObject *__pyx_codeobj__95;
+static PyObject *__pyx_codeobj__97;
+static PyObject *__pyx_codeobj__99;
+static PyObject *__pyx_codeobj__101;
+static PyObject *__pyx_codeobj__103;
+static PyObject *__pyx_codeobj__105;
+static PyObject *__pyx_codeobj__107;
+static PyObject *__pyx_codeobj__109;
 static PyObject *__pyx_codeobj__111;
 static PyObject *__pyx_codeobj__113;
 static PyObject *__pyx_codeobj__115;
@@ -3030,9 +3138,8 @@ static PyObject *__pyx_codeobj__143;
 static PyObject *__pyx_codeobj__145;
 static PyObject *__pyx_codeobj__147;
 static PyObject *__pyx_codeobj__149;
-static PyObject *__pyx_codeobj__151;
-static PyObject *__pyx_codeobj__153;
-static PyObject *__pyx_codeobj__155;
+static PyObject *__pyx_codeobj__152;
+static PyObject *__pyx_codeobj__154;
 static PyObject *__pyx_codeobj__157;
 static PyObject *__pyx_codeobj__159;
 static PyObject *__pyx_codeobj__161;
@@ -3043,20 +3150,21 @@ static PyObject *__pyx_codeobj__169;
 static PyObject *__pyx_codeobj__171;
 static PyObject *__pyx_codeobj__173;
 static PyObject *__pyx_codeobj__175;
-static PyObject *__pyx_codeobj__178;
+static PyObject *__pyx_codeobj__177;
 static PyObject *__pyx_codeobj__180;
 static PyObject *__pyx_codeobj__182;
-static PyObject *__pyx_codeobj__185;
-static PyObject *__pyx_codeobj__187;
-static PyObject *__pyx_codeobj__189;
-static PyObject *__pyx_codeobj__191;
-static PyObject *__pyx_codeobj__193;
-static PyObject *__pyx_codeobj__195;
-static PyObject *__pyx_codeobj__197;
-static PyObject *__pyx_codeobj__199;
-static PyObject *__pyx_codeobj__201;
-static PyObject *__pyx_codeobj__203;
-static PyObject *__pyx_codeobj__205;
+static PyObject *__pyx_codeobj__184;
+static PyObject *__pyx_codeobj__186;
+static PyObject *__pyx_codeobj__188;
+static PyObject *__pyx_codeobj__190;
+static PyObject *__pyx_codeobj__192;
+static PyObject *__pyx_codeobj__194;
+static PyObject *__pyx_codeobj__196;
+static PyObject *__pyx_codeobj__198;
+static PyObject *__pyx_codeobj__200;
+static PyObject *__pyx_codeobj__202;
+static PyObject *__pyx_codeobj__204;
+static PyObject *__pyx_codeobj__206;
 static PyObject *__pyx_codeobj__208;
 static PyObject *__pyx_codeobj__210;
 static PyObject *__pyx_codeobj__212;
@@ -3064,22 +3172,9 @@ static PyObject *__pyx_codeobj__214;
 static PyObject *__pyx_codeobj__216;
 static PyObject *__pyx_codeobj__218;
 static PyObject *__pyx_codeobj__220;
-static PyObject *__pyx_codeobj__222;
-static PyObject *__pyx_codeobj__224;
-static PyObject *__pyx_codeobj__226;
-static PyObject *__pyx_codeobj__228;
-static PyObject *__pyx_codeobj__230;
-static PyObject *__pyx_codeobj__232;
-static PyObject *__pyx_codeobj__234;
-static PyObject *__pyx_codeobj__236;
-static PyObject *__pyx_codeobj__238;
-static PyObject *__pyx_codeobj__240;
-static PyObject *__pyx_codeobj__242;
-static PyObject *__pyx_codeobj__244;
-static PyObject *__pyx_codeobj__246;
 /* Late includes */
 
-/* "spavro/fast_binary.pyx":15
+/* "spavro/fast_binary.pyx":18
  * 
  * 
  * cdef long long read_long(fo):             # <<<<<<<<<<<<<<
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-    /* "spavro/fast_binary.pyx":31
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-  __pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_10_make_array_check, /*tp_new*/
-  0, /*tp_free*/
-  0, /*tp_is_gc*/
-  0, /*tp_bases*/
-  0, /*tp_mro*/
-  0, /*tp_cache*/
-  0, /*tp_subclasses*/
-  0, /*tp_weaklist*/
-  0, /*tp_del*/
-  0, /*tp_version_tag*/
-  #if PY_VERSION_HEX >= 0x030400a1
-  0, /*tp_finalize*/
-  #endif
-};
+  /* function exit code */
+  __pyx_L1_error:;
+  __Pyx_XDECREF(__pyx_t_1);
+  __Pyx_AddTraceback("cfunc.to_py.__Pyx_CFunc_float____object___to_py", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __pyx_r = 0;
+  __pyx_L0:;
+  __Pyx_XDECREF(__pyx_v_wrap);
+  __Pyx_DECREF(((PyObject *)__pyx_cur_scope));
+  __Pyx_XGIVEREF(__pyx_r);
+  __Pyx_RefNannyFinishContext();
+  return __pyx_r;
+}
 
-static struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_11_make_union_check *__pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_11_make_union_check[8];
-static int __pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_11_make_union_check = 0;
+static struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct__make_union_reader *__pyx_freelist_6spavro_11fast_binary___pyx_scope_struct__make_union_reader[8];
+static int __pyx_freecount_6spavro_11fast_binary___pyx_scope_struct__make_union_reader = 0;
 
-static PyObject *__pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_11_make_union_check(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+static PyObject *__pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct__make_union_reader(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
   PyObject *o;
-  if (CYTHON_COMPILING_IN_CPYTHON && likely((__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_11_make_union_check > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_11_make_union_check)))) {
-    o = (PyObject*)__pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_11_make_union_check[--__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_11_make_union_check];
-    memset(o, 0, sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_11_make_union_check));
+  if (CYTHON_COMPILING_IN_CPYTHON && likely((__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct__make_union_reader > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct__make_union_reader)))) {
+    o = (PyObject*)__pyx_freelist_6spavro_11fast_binary___pyx_scope_struct__make_union_reader[--__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct__make_union_reader];
+    memset(o, 0, sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct__make_union_reader));
     (void) PyObject_INIT(o, t);
     PyObject_GC_Track(o);
   } else {
@@ -24778,42 +22939,54 @@ static PyObject *__pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_11_make_u
   return o;
 }
 
-static void __pyx_tp_dealloc_6spavro_11fast_binary___pyx_scope_struct_11_make_union_check(PyObject *o) {
-  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_11_make_union_check *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_11_make_union_check *)o;
+static void __pyx_tp_dealloc_6spavro_11fast_binary___pyx_scope_struct__make_union_reader(PyObject *o) {
+  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct__make_union_reader *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct__make_union_reader *)o;
   PyObject_GC_UnTrack(o);
-  Py_CLEAR(p->__pyx_v_union_checks);
-  if (CYTHON_COMPILING_IN_CPYTHON && ((__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_11_make_union_check < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_11_make_union_check)))) {
-    __pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_11_make_union_check[__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_11_make_union_check++] = ((struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_11_make_union_check *)o);
+  Py_CLEAR(p->__pyx_v_readers);
+  Py_CLEAR(p->__pyx_v_union_schema);
+  if (CYTHON_COMPILING_IN_CPYTHON && ((__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct__make_union_reader < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct__make_union_reader)))) {
+    __pyx_freelist_6spavro_11fast_binary___pyx_scope_struct__make_union_reader[__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct__make_union_reader++] = ((struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct__make_union_reader *)o);
   } else {
     (*Py_TYPE(o)->tp_free)(o);
   }
 }
 
-static int __pyx_tp_traverse_6spavro_11fast_binary___pyx_scope_struct_11_make_union_check(PyObject *o, visitproc v, void *a) {
+static int __pyx_tp_traverse_6spavro_11fast_binary___pyx_scope_struct__make_union_reader(PyObject *o, visitproc v, void *a) {
   int e;
-  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_11_make_union_check *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_11_make_union_check *)o;
-  if (p->__pyx_v_union_checks) {
-    e = (*v)(p->__pyx_v_union_checks, a); if (e) return e;
+  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct__make_union_reader *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct__make_union_reader *)o;
+  if (p->__pyx_v_readers) {
+    e = (*v)(p->__pyx_v_readers, a); if (e) return e;
+  }
+  if (p->__pyx_v_union_schema) {
+    e = (*v)(p->__pyx_v_union_schema, a); if (e) return e;
   }
   return 0;
 }
 
-static int __pyx_tp_clear_6spavro_11fast_binary___pyx_scope_struct_11_make_union_check(PyObject *o) {
+static int __pyx_tp_clear_6spavro_11fast_binary___pyx_scope_struct__make_union_reader(PyObject *o) {
   PyObject* tmp;
-  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_11_make_union_check *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_11_make_union_check *)o;
-  tmp = ((PyObject*)p->__pyx_v_union_checks);
-  p->__pyx_v_union_checks = ((PyObject*)Py_None); Py_INCREF(Py_None);
+  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct__make_union_reader *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct__make_union_reader *)o;
+  tmp = ((PyObject*)p->__pyx_v_readers);
+  p->__pyx_v_readers = ((PyObject*)Py_None); Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  tmp = ((PyObject*)p->__pyx_v_union_schema);
+  p->__pyx_v_union_schema = Py_None; Py_INCREF(Py_None);
   Py_XDECREF(tmp);
   return 0;
 }
 
-static PyTypeObject __pyx_type_6spavro_11fast_binary___pyx_scope_struct_11_make_union_check = {
+static PyTypeObject __pyx_type_6spavro_11fast_binary___pyx_scope_struct__make_union_reader = {
   PyVarObject_HEAD_INIT(0, 0)
-  "spavro.fast_binary.__pyx_scope_struct_11_make_union_check", /*tp_name*/
-  sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_11_make_union_check), /*tp_basicsize*/
+  "spavro.fast_binary.__pyx_scope_struct__make_union_reader", /*tp_name*/
+  sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct__make_union_reader), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc_6spavro_11fast_binary___pyx_scope_struct_11_make_union_check, /*tp_dealloc*/
+  __pyx_tp_dealloc_6spavro_11fast_binary___pyx_scope_struct__make_union_reader, /*tp_dealloc*/
+  #if PY_VERSION_HEX < 0x030800b4
   0, /*tp_print*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4
+  0, /*tp_vectorcall_offset*/
+  #endif
   0, /*tp_getattr*/
   0, /*tp_setattr*/
   #if PY_MAJOR_VERSION < 3
@@ -24834,8 +23007,8 @@ static PyTypeObject __pyx_type_6spavro_11fast_binary___pyx_scope_struct_11_make_
   0, /*tp_as_buffer*/
   Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
   0, /*tp_doc*/
-  __pyx_tp_traverse_6spavro_11fast_binary___pyx_scope_struct_11_make_union_check, /*tp_traverse*/
-  __pyx_tp_clear_6spavro_11fast_binary___pyx_scope_struct_11_make_union_check, /*tp_clear*/
+  __pyx_tp_traverse_6spavro_11fast_binary___pyx_scope_struct__make_union_reader, /*tp_traverse*/
+  __pyx_tp_clear_6spavro_11fast_binary___pyx_scope_struct__make_union_reader, /*tp_clear*/
   0, /*tp_richcompare*/
   0, /*tp_weaklistoffset*/
   0, /*tp_iter*/
@@ -24850,7 +23023,7 @@ static PyTypeObject __pyx_type_6spavro_11fast_binary___pyx_scope_struct_11_make_
   0, /*tp_dictoffset*/
   0, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_11_make_union_check, /*tp_new*/
+  __pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct__make_union_reader, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -24863,98 +23036,25 @@ static PyTypeObject __pyx_type_6spavro_11fast_binary___pyx_scope_struct_11_make_
   #if PY_VERSION_HEX >= 0x030400a1
   0, /*tp_finalize*/
   #endif
-};
-
-static struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_12_make_fixed_check *__pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_12_make_fixed_check[8];
-static int __pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_12_make_fixed_check = 0;
-
-static PyObject *__pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_12_make_fixed_check(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
-  PyObject *o;
-  if (CYTHON_COMPILING_IN_CPYTHON && likely((__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_12_make_fixed_check > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_12_make_fixed_check)))) {
-    o = (PyObject*)__pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_12_make_fixed_check[--__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_12_make_fixed_check];
-    memset(o, 0, sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_12_make_fixed_check));
-    (void) PyObject_INIT(o, t);
-  } else {
-    o = (*t->tp_alloc)(t, 0);
-    if (unlikely(!o)) return 0;
-  }
-  return o;
-}
-
-static void __pyx_tp_dealloc_6spavro_11fast_binary___pyx_scope_struct_12_make_fixed_check(PyObject *o) {
-  if (CYTHON_COMPILING_IN_CPYTHON && ((__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_12_make_fixed_check < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_12_make_fixed_check)))) {
-    __pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_12_make_fixed_check[__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_12_make_fixed_check++] = ((struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_12_make_fixed_check *)o);
-  } else {
-    (*Py_TYPE(o)->tp_free)(o);
-  }
-}
-
-static PyTypeObject __pyx_type_6spavro_11fast_binary___pyx_scope_struct_12_make_fixed_check = {
-  PyVarObject_HEAD_INIT(0, 0)
-  "spavro.fast_binary.__pyx_scope_struct_12_make_fixed_check", /*tp_name*/
-  sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_12_make_fixed_check), /*tp_basicsize*/
-  0, /*tp_itemsize*/
-  __pyx_tp_dealloc_6spavro_11fast_binary___pyx_scope_struct_12_make_fixed_check, /*tp_dealloc*/
-  0, /*tp_print*/
-  0, /*tp_getattr*/
-  0, /*tp_setattr*/
-  #if PY_MAJOR_VERSION < 3
-  0, /*tp_compare*/
+  #if PY_VERSION_HEX >= 0x030800b1 && (!CYTHON_COMPILING_IN_PYPY || PYPY_VERSION_NUM >= 0x07030800)
+  0, /*tp_vectorcall*/
   #endif
-  #if PY_MAJOR_VERSION >= 3
-  0, /*tp_as_async*/
+  #if PY_VERSION_HEX >= 0x030800b4 && PY_VERSION_HEX < 0x03090000
+  0, /*tp_print*/
   #endif
-  0, /*tp_repr*/
-  0, /*tp_as_number*/
-  0, /*tp_as_sequence*/
-  0, /*tp_as_mapping*/
-  0, /*tp_hash*/
-  0, /*tp_call*/
-  0, /*tp_str*/
-  0, /*tp_getattro*/
-  0, /*tp_setattro*/
-  0, /*tp_as_buffer*/
-  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER, /*tp_flags*/
-  0, /*tp_doc*/
-  0, /*tp_traverse*/
-  0, /*tp_clear*/
-  0, /*tp_richcompare*/
-  0, /*tp_weaklistoffset*/
-  0, /*tp_iter*/
-  0, /*tp_iternext*/
-  0, /*tp_methods*/
-  0, /*tp_members*/
-  0, /*tp_getset*/
-  0, /*tp_base*/
-  0, /*tp_dict*/
-  0, /*tp_descr_get*/
-  0, /*tp_descr_set*/
-  0, /*tp_dictoffset*/
-  0, /*tp_init*/
-  0, /*tp_alloc*/
-  __pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_12_make_fixed_check, /*tp_new*/
-  0, /*tp_free*/
-  0, /*tp_is_gc*/
-  0, /*tp_bases*/
-  0, /*tp_mro*/
-  0, /*tp_cache*/
-  0, /*tp_subclasses*/
-  0, /*tp_weaklist*/
-  0, /*tp_del*/
-  0, /*tp_version_tag*/
-  #if PY_VERSION_HEX >= 0x030400a1
-  0, /*tp_finalize*/
+  #if CYTHON_COMPILING_IN_PYPY && PY_VERSION_HEX >= 0x03090000
+  0, /*tp_pypy_flags*/
   #endif
 };
 
-static struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_13_make_map_check *__pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_13_make_map_check[8];
-static int __pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_13_make_map_check = 0;
+static struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_1_make_record_reader *__pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_1_make_record_reader[8];
+static int __pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_1_make_record_reader = 0;
 
-static PyObject *__pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_13_make_map_check(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+static PyObject *__pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_1_make_record_reader(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
   PyObject *o;
-  if (CYTHON_COMPILING_IN_CPYTHON && likely((__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_13_make_map_check > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_13_make_map_check)))) {
-    o = (PyObject*)__pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_13_make_map_check[--__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_13_make_map_check];
-    memset(o, 0, sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_13_make_map_check));
+  if (CYTHON_COMPILING_IN_CPYTHON && likely((__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_1_make_record_reader > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_1_make_record_reader)))) {
+    o = (PyObject*)__pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_1_make_record_reader[--__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_1_make_record_reader];
+    memset(o, 0, sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_1_make_record_reader));
     (void) PyObject_INIT(o, t);
     PyObject_GC_Track(o);
   } else {
@@ -24964,42 +23064,61 @@ static PyObject *__pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_13_make_m
   return o;
 }
 
-static void __pyx_tp_dealloc_6spavro_11fast_binary___pyx_scope_struct_13_make_map_check(PyObject *o) {
-  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_13_make_map_check *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_13_make_map_check *)o;
+static void __pyx_tp_dealloc_6spavro_11fast_binary___pyx_scope_struct_1_make_record_reader(PyObject *o) {
+  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_1_make_record_reader *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_1_make_record_reader *)o;
   PyObject_GC_UnTrack(o);
-  Py_CLEAR(p->__pyx_v_map_value_check);
-  if (CYTHON_COMPILING_IN_CPYTHON && ((__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_13_make_map_check < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_13_make_map_check)))) {
-    __pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_13_make_map_check[__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_13_make_map_check++] = ((struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_13_make_map_check *)o);
+  Py_CLEAR(p->__pyx_v_field);
+  Py_CLEAR(p->__pyx_v_fields);
+  Py_CLEAR(p->__pyx_v_schema);
+  if (CYTHON_COMPILING_IN_CPYTHON && ((__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_1_make_record_reader < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_1_make_record_reader)))) {
+    __pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_1_make_record_reader[__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_1_make_record_reader++] = ((struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_1_make_record_reader *)o);
   } else {
     (*Py_TYPE(o)->tp_free)(o);
   }
 }
 
-static int __pyx_tp_traverse_6spavro_11fast_binary___pyx_scope_struct_13_make_map_check(PyObject *o, visitproc v, void *a) {
+static int __pyx_tp_traverse_6spavro_11fast_binary___pyx_scope_struct_1_make_record_reader(PyObject *o, visitproc v, void *a) {
   int e;
-  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_13_make_map_check *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_13_make_map_check *)o;
-  if (p->__pyx_v_map_value_check) {
-    e = (*v)(p->__pyx_v_map_value_check, a); if (e) return e;
+  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_1_make_record_reader *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_1_make_record_reader *)o;
+  if (p->__pyx_v_field) {
+    e = (*v)(p->__pyx_v_field, a); if (e) return e;
+  }
+  if (p->__pyx_v_fields) {
+    e = (*v)(p->__pyx_v_fields, a); if (e) return e;
+  }
+  if (p->__pyx_v_schema) {
+    e = (*v)(p->__pyx_v_schema, a); if (e) return e;
   }
   return 0;
 }
 
-static int __pyx_tp_clear_6spavro_11fast_binary___pyx_scope_struct_13_make_map_check(PyObject *o) {
+static int __pyx_tp_clear_6spavro_11fast_binary___pyx_scope_struct_1_make_record_reader(PyObject *o) {
   PyObject* tmp;
-  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_13_make_map_check *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_13_make_map_check *)o;
-  tmp = ((PyObject*)p->__pyx_v_map_value_check);
-  p->__pyx_v_map_value_check = Py_None; Py_INCREF(Py_None);
+  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_1_make_record_reader *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_1_make_record_reader *)o;
+  tmp = ((PyObject*)p->__pyx_v_field);
+  p->__pyx_v_field = Py_None; Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  tmp = ((PyObject*)p->__pyx_v_fields);
+  p->__pyx_v_fields = ((PyObject*)Py_None); Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  tmp = ((PyObject*)p->__pyx_v_schema);
+  p->__pyx_v_schema = Py_None; Py_INCREF(Py_None);
   Py_XDECREF(tmp);
   return 0;
 }
 
-static PyTypeObject __pyx_type_6spavro_11fast_binary___pyx_scope_struct_13_make_map_check = {
+static PyTypeObject __pyx_type_6spavro_11fast_binary___pyx_scope_struct_1_make_record_reader = {
   PyVarObject_HEAD_INIT(0, 0)
-  "spavro.fast_binary.__pyx_scope_struct_13_make_map_check", /*tp_name*/
-  sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_13_make_map_check), /*tp_basicsize*/
+  "spavro.fast_binary.__pyx_scope_struct_1_make_record_reader", /*tp_name*/
+  sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_1_make_record_reader), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc_6spavro_11fast_binary___pyx_scope_struct_13_make_map_check, /*tp_dealloc*/
+  __pyx_tp_dealloc_6spavro_11fast_binary___pyx_scope_struct_1_make_record_reader, /*tp_dealloc*/
+  #if PY_VERSION_HEX < 0x030800b4
   0, /*tp_print*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4
+  0, /*tp_vectorcall_offset*/
+  #endif
   0, /*tp_getattr*/
   0, /*tp_setattr*/
   #if PY_MAJOR_VERSION < 3
@@ -25020,8 +23139,8 @@ static PyTypeObject __pyx_type_6spavro_11fast_binary___pyx_scope_struct_13_make_
   0, /*tp_as_buffer*/
   Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
   0, /*tp_doc*/
-  __pyx_tp_traverse_6spavro_11fast_binary___pyx_scope_struct_13_make_map_check, /*tp_traverse*/
-  __pyx_tp_clear_6spavro_11fast_binary___pyx_scope_struct_13_make_map_check, /*tp_clear*/
+  __pyx_tp_traverse_6spavro_11fast_binary___pyx_scope_struct_1_make_record_reader, /*tp_traverse*/
+  __pyx_tp_clear_6spavro_11fast_binary___pyx_scope_struct_1_make_record_reader, /*tp_clear*/
   0, /*tp_richcompare*/
   0, /*tp_weaklistoffset*/
   0, /*tp_iter*/
@@ -25036,7 +23155,7 @@ static PyTypeObject __pyx_type_6spavro_11fast_binary___pyx_scope_struct_13_make_
   0, /*tp_dictoffset*/
   0, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_13_make_map_check, /*tp_new*/
+  __pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_1_make_record_reader, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -25049,16 +23168,25 @@ static PyTypeObject __pyx_type_6spavro_11fast_binary___pyx_scope_struct_13_make_
   #if PY_VERSION_HEX >= 0x030400a1
   0, /*tp_finalize*/
   #endif
+  #if PY_VERSION_HEX >= 0x030800b1 && (!CYTHON_COMPILING_IN_PYPY || PYPY_VERSION_NUM >= 0x07030800)
+  0, /*tp_vectorcall*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4 && PY_VERSION_HEX < 0x03090000
+  0, /*tp_print*/
+  #endif
+  #if CYTHON_COMPILING_IN_PYPY && PY_VERSION_HEX >= 0x03090000
+  0, /*tp_pypy_flags*/
+  #endif
 };
 
-static struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_14___pyx_f_6spavro_11fast_binary_create_promotions_for_union *__pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_14___pyx_f_6spavro_11fast_binary_create_promotions_for_union[8];
-static int __pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_14___pyx_f_6spavro_11fast_binary_create_promotions_for_union = 0;
+static struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_2_make_enum_reader *__pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_2_make_enum_reader[8];
+static int __pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_2_make_enum_reader = 0;
 
-static PyObject *__pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_14___pyx_f_6spavro_11fast_binary_create_promotions_for_union(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+static PyObject *__pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_2_make_enum_reader(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
   PyObject *o;
-  if (CYTHON_COMPILING_IN_CPYTHON && likely((__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_14___pyx_f_6spavro_11fast_binary_create_promotions_for_union > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_14___pyx_f_6spavro_11fast_binary_create_promotions_for_union)))) {
-    o = (PyObject*)__pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_14___pyx_f_6spavro_11fast_binary_create_promotions_for_union[--__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_14___pyx_f_6spavro_11fast_binary_create_promotions_for_union];
-    memset(o, 0, sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_14___pyx_f_6spavro_11fast_binary_create_promotions_for_union));
+  if (CYTHON_COMPILING_IN_CPYTHON && likely((__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_2_make_enum_reader > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_2_make_enum_reader)))) {
+    o = (PyObject*)__pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_2_make_enum_reader[--__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_2_make_enum_reader];
+    memset(o, 0, sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_2_make_enum_reader));
     (void) PyObject_INIT(o, t);
     PyObject_GC_Track(o);
   } else {
@@ -25068,42 +23196,54 @@ static PyObject *__pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_14___pyx_
   return o;
 }
 
-static void __pyx_tp_dealloc_6spavro_11fast_binary___pyx_scope_struct_14___pyx_f_6spavro_11fast_binary_create_promotions_for_union(PyObject *o) {
-  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_14___pyx_f_6spavro_11fast_binary_create_promotions_for_union *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_14___pyx_f_6spavro_11fast_binary_create_promotions_for_union *)o;
+static void __pyx_tp_dealloc_6spavro_11fast_binary___pyx_scope_struct_2_make_enum_reader(PyObject *o) {
+  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_2_make_enum_reader *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_2_make_enum_reader *)o;
   PyObject_GC_UnTrack(o);
-  Py_CLEAR(p->__pyx_v_writer_lookup_dict);
-  if (CYTHON_COMPILING_IN_CPYTHON && ((__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_14___pyx_f_6spavro_11fast_binary_create_promotions_for_union < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_14___pyx_f_6spavro_11fast_binary_create_promotions_for_union)))) {
-    __pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_14___pyx_f_6spavro_11fast_binary_create_promotions_for_union[__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_14___pyx_f_6spavro_11fast_binary_create_promotions_for_union++] = ((struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_14___pyx_f_6spavro_11fast_binary_create_promotions_for_union *)o);
+  Py_CLEAR(p->__pyx_v_schema);
+  Py_CLEAR(p->__pyx_v_symbols);
+  if (CYTHON_COMPILING_IN_CPYTHON && ((__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_2_make_enum_reader < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_2_make_enum_reader)))) {
+    __pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_2_make_enum_reader[__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_2_make_enum_reader++] = ((struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_2_make_enum_reader *)o);
   } else {
     (*Py_TYPE(o)->tp_free)(o);
   }
 }
 
-static int __pyx_tp_traverse_6spavro_11fast_binary___pyx_scope_struct_14___pyx_f_6spavro_11fast_binary_create_promotions_for_union(PyObject *o, visitproc v, void *a) {
+static int __pyx_tp_traverse_6spavro_11fast_binary___pyx_scope_struct_2_make_enum_reader(PyObject *o, visitproc v, void *a) {
   int e;
-  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_14___pyx_f_6spavro_11fast_binary_create_promotions_for_union *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_14___pyx_f_6spavro_11fast_binary_create_promotions_for_union *)o;
-  if (p->__pyx_v_writer_lookup_dict) {
-    e = (*v)(p->__pyx_v_writer_lookup_dict, a); if (e) return e;
+  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_2_make_enum_reader *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_2_make_enum_reader *)o;
+  if (p->__pyx_v_schema) {
+    e = (*v)(p->__pyx_v_schema, a); if (e) return e;
+  }
+  if (p->__pyx_v_symbols) {
+    e = (*v)(p->__pyx_v_symbols, a); if (e) return e;
   }
   return 0;
 }
 
-static int __pyx_tp_clear_6spavro_11fast_binary___pyx_scope_struct_14___pyx_f_6spavro_11fast_binary_create_promotions_for_union(PyObject *o) {
+static int __pyx_tp_clear_6spavro_11fast_binary___pyx_scope_struct_2_make_enum_reader(PyObject *o) {
   PyObject* tmp;
-  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_14___pyx_f_6spavro_11fast_binary_create_promotions_for_union *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_14___pyx_f_6spavro_11fast_binary_create_promotions_for_union *)o;
-  tmp = ((PyObject*)p->__pyx_v_writer_lookup_dict);
-  p->__pyx_v_writer_lookup_dict = ((PyObject*)Py_None); Py_INCREF(Py_None);
+  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_2_make_enum_reader *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_2_make_enum_reader *)o;
+  tmp = ((PyObject*)p->__pyx_v_schema);
+  p->__pyx_v_schema = Py_None; Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  tmp = ((PyObject*)p->__pyx_v_symbols);
+  p->__pyx_v_symbols = ((PyObject*)Py_None); Py_INCREF(Py_None);
   Py_XDECREF(tmp);
   return 0;
 }
 
-static PyTypeObject __pyx_type_6spavro_11fast_binary___pyx_scope_struct_14___pyx_f_6spavro_11fast_binary_create_promotions_for_union = {
+static PyTypeObject __pyx_type_6spavro_11fast_binary___pyx_scope_struct_2_make_enum_reader = {
   PyVarObject_HEAD_INIT(0, 0)
-  "spavro.fast_binary.__pyx_scope_struct_14___pyx_f_6spavro_11fast_binary_create_promotions_for_union", /*tp_name*/
-  sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_14___pyx_f_6spavro_11fast_binary_create_promotions_for_union), /*tp_basicsize*/
+  "spavro.fast_binary.__pyx_scope_struct_2_make_enum_reader", /*tp_name*/
+  sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_2_make_enum_reader), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc_6spavro_11fast_binary___pyx_scope_struct_14___pyx_f_6spavro_11fast_binary_create_promotions_for_union, /*tp_dealloc*/
+  __pyx_tp_dealloc_6spavro_11fast_binary___pyx_scope_struct_2_make_enum_reader, /*tp_dealloc*/
+  #if PY_VERSION_HEX < 0x030800b4
   0, /*tp_print*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4
+  0, /*tp_vectorcall_offset*/
+  #endif
   0, /*tp_getattr*/
   0, /*tp_setattr*/
   #if PY_MAJOR_VERSION < 3
@@ -25124,8 +23264,8 @@ static PyTypeObject __pyx_type_6spavro_11fast_binary___pyx_scope_struct_14___pyx
   0, /*tp_as_buffer*/
   Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
   0, /*tp_doc*/
-  __pyx_tp_traverse_6spavro_11fast_binary___pyx_scope_struct_14___pyx_f_6spavro_11fast_binary_create_promotions_for_union, /*tp_traverse*/
-  __pyx_tp_clear_6spavro_11fast_binary___pyx_scope_struct_14___pyx_f_6spavro_11fast_binary_create_promotions_for_union, /*tp_clear*/
+  __pyx_tp_traverse_6spavro_11fast_binary___pyx_scope_struct_2_make_enum_reader, /*tp_traverse*/
+  __pyx_tp_clear_6spavro_11fast_binary___pyx_scope_struct_2_make_enum_reader, /*tp_clear*/
   0, /*tp_richcompare*/
   0, /*tp_weaklistoffset*/
   0, /*tp_iter*/
@@ -25140,7 +23280,7 @@ static PyTypeObject __pyx_type_6spavro_11fast_binary___pyx_scope_struct_14___pyx
   0, /*tp_dictoffset*/
   0, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_14___pyx_f_6spavro_11fast_binary_create_promotions_for_union, /*tp_new*/
+  __pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_2_make_enum_reader, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -25153,16 +23293,25 @@ static PyTypeObject __pyx_type_6spavro_11fast_binary___pyx_scope_struct_14___pyx
   #if PY_VERSION_HEX >= 0x030400a1
   0, /*tp_finalize*/
   #endif
+  #if PY_VERSION_HEX >= 0x030800b1 && (!CYTHON_COMPILING_IN_PYPY || PYPY_VERSION_NUM >= 0x07030800)
+  0, /*tp_vectorcall*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4 && PY_VERSION_HEX < 0x03090000
+  0, /*tp_print*/
+  #endif
+  #if CYTHON_COMPILING_IN_PYPY && PY_VERSION_HEX >= 0x03090000
+  0, /*tp_pypy_flags*/
+  #endif
 };
 
-static struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_15_make_union_writer *__pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_15_make_union_writer[8];
-static int __pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_15_make_union_writer = 0;
+static struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_3_make_array_reader *__pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_3_make_array_reader[8];
+static int __pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_3_make_array_reader = 0;
 
-static PyObject *__pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_15_make_union_writer(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+static PyObject *__pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_3_make_array_reader(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
   PyObject *o;
-  if (CYTHON_COMPILING_IN_CPYTHON && likely((__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_15_make_union_writer > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_15_make_union_writer)))) {
-    o = (PyObject*)__pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_15_make_union_writer[--__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_15_make_union_writer];
-    memset(o, 0, sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_15_make_union_writer));
+  if (CYTHON_COMPILING_IN_CPYTHON && likely((__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_3_make_array_reader > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_3_make_array_reader)))) {
+    o = (PyObject*)__pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_3_make_array_reader[--__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_3_make_array_reader];
+    memset(o, 0, sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_3_make_array_reader));
     (void) PyObject_INIT(o, t);
     PyObject_GC_Track(o);
   } else {
@@ -25172,56 +23321,54 @@ static PyObject *__pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_15_make_u
   return o;
 }
 
-static void __pyx_tp_dealloc_6spavro_11fast_binary___pyx_scope_struct_15_make_union_writer(PyObject *o) {
-  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_15_make_union_writer *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_15_make_union_writer *)o;
+static void __pyx_tp_dealloc_6spavro_11fast_binary___pyx_scope_struct_3_make_array_reader(PyObject *o) {
+  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_3_make_array_reader *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_3_make_array_reader *)o;
   PyObject_GC_UnTrack(o);
-  Py_CLEAR(p->__pyx_v_union_schema);
-  Py_CLEAR(p->__pyx_v_writer_lookup);
-  Py_CLEAR(p->__pyx_v_writer_lookup_dict);
-  if (CYTHON_COMPILING_IN_CPYTHON && ((__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_15_make_union_writer < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_15_make_union_writer)))) {
-    __pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_15_make_union_writer[__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_15_make_union_writer++] = ((struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_15_make_union_writer *)o);
+  Py_CLEAR(p->__pyx_v_item_reader);
+  Py_CLEAR(p->__pyx_v_schema);
+  if (CYTHON_COMPILING_IN_CPYTHON && ((__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_3_make_array_reader < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_3_make_array_reader)))) {
+    __pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_3_make_array_reader[__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_3_make_array_reader++] = ((struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_3_make_array_reader *)o);
   } else {
     (*Py_TYPE(o)->tp_free)(o);
   }
 }
 
-static int __pyx_tp_traverse_6spavro_11fast_binary___pyx_scope_struct_15_make_union_writer(PyObject *o, visitproc v, void *a) {
+static int __pyx_tp_traverse_6spavro_11fast_binary___pyx_scope_struct_3_make_array_reader(PyObject *o, visitproc v, void *a) {
   int e;
-  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_15_make_union_writer *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_15_make_union_writer *)o;
-  if (p->__pyx_v_union_schema) {
-    e = (*v)(p->__pyx_v_union_schema, a); if (e) return e;
-  }
-  if (p->__pyx_v_writer_lookup) {
-    e = (*v)(p->__pyx_v_writer_lookup, a); if (e) return e;
+  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_3_make_array_reader *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_3_make_array_reader *)o;
+  if (p->__pyx_v_item_reader) {
+    e = (*v)(p->__pyx_v_item_reader, a); if (e) return e;
   }
-  if (p->__pyx_v_writer_lookup_dict) {
-    e = (*v)(p->__pyx_v_writer_lookup_dict, a); if (e) return e;
+  if (p->__pyx_v_schema) {
+    e = (*v)(p->__pyx_v_schema, a); if (e) return e;
   }
   return 0;
 }
 
-static int __pyx_tp_clear_6spavro_11fast_binary___pyx_scope_struct_15_make_union_writer(PyObject *o) {
+static int __pyx_tp_clear_6spavro_11fast_binary___pyx_scope_struct_3_make_array_reader(PyObject *o) {
   PyObject* tmp;
-  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_15_make_union_writer *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_15_make_union_writer *)o;
-  tmp = ((PyObject*)p->__pyx_v_union_schema);
-  p->__pyx_v_union_schema = Py_None; Py_INCREF(Py_None);
-  Py_XDECREF(tmp);
-  tmp = ((PyObject*)p->__pyx_v_writer_lookup);
-  p->__pyx_v_writer_lookup = Py_None; Py_INCREF(Py_None);
+  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_3_make_array_reader *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_3_make_array_reader *)o;
+  tmp = ((PyObject*)p->__pyx_v_item_reader);
+  p->__pyx_v_item_reader = Py_None; Py_INCREF(Py_None);
   Py_XDECREF(tmp);
-  tmp = ((PyObject*)p->__pyx_v_writer_lookup_dict);
-  p->__pyx_v_writer_lookup_dict = ((PyObject*)Py_None); Py_INCREF(Py_None);
+  tmp = ((PyObject*)p->__pyx_v_schema);
+  p->__pyx_v_schema = Py_None; Py_INCREF(Py_None);
   Py_XDECREF(tmp);
   return 0;
 }
 
-static PyTypeObject __pyx_type_6spavro_11fast_binary___pyx_scope_struct_15_make_union_writer = {
+static PyTypeObject __pyx_type_6spavro_11fast_binary___pyx_scope_struct_3_make_array_reader = {
   PyVarObject_HEAD_INIT(0, 0)
-  "spavro.fast_binary.__pyx_scope_struct_15_make_union_writer", /*tp_name*/
-  sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_15_make_union_writer), /*tp_basicsize*/
+  "spavro.fast_binary.__pyx_scope_struct_3_make_array_reader", /*tp_name*/
+  sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_3_make_array_reader), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc_6spavro_11fast_binary___pyx_scope_struct_15_make_union_writer, /*tp_dealloc*/
+  __pyx_tp_dealloc_6spavro_11fast_binary___pyx_scope_struct_3_make_array_reader, /*tp_dealloc*/
+  #if PY_VERSION_HEX < 0x030800b4
   0, /*tp_print*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4
+  0, /*tp_vectorcall_offset*/
+  #endif
   0, /*tp_getattr*/
   0, /*tp_setattr*/
   #if PY_MAJOR_VERSION < 3
@@ -25242,8 +23389,8 @@ static PyTypeObject __pyx_type_6spavro_11fast_binary___pyx_scope_struct_15_make_
   0, /*tp_as_buffer*/
   Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
   0, /*tp_doc*/
-  __pyx_tp_traverse_6spavro_11fast_binary___pyx_scope_struct_15_make_union_writer, /*tp_traverse*/
-  __pyx_tp_clear_6spavro_11fast_binary___pyx_scope_struct_15_make_union_writer, /*tp_clear*/
+  __pyx_tp_traverse_6spavro_11fast_binary___pyx_scope_struct_3_make_array_reader, /*tp_traverse*/
+  __pyx_tp_clear_6spavro_11fast_binary___pyx_scope_struct_3_make_array_reader, /*tp_clear*/
   0, /*tp_richcompare*/
   0, /*tp_weaklistoffset*/
   0, /*tp_iter*/
@@ -25258,7 +23405,7 @@ static PyTypeObject __pyx_type_6spavro_11fast_binary___pyx_scope_struct_15_make_
   0, /*tp_dictoffset*/
   0, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_15_make_union_writer, /*tp_new*/
+  __pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_3_make_array_reader, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -25271,16 +23418,25 @@ static PyTypeObject __pyx_type_6spavro_11fast_binary___pyx_scope_struct_15_make_
   #if PY_VERSION_HEX >= 0x030400a1
   0, /*tp_finalize*/
   #endif
+  #if PY_VERSION_HEX >= 0x030800b1 && (!CYTHON_COMPILING_IN_PYPY || PYPY_VERSION_NUM >= 0x07030800)
+  0, /*tp_vectorcall*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4 && PY_VERSION_HEX < 0x03090000
+  0, /*tp_print*/
+  #endif
+  #if CYTHON_COMPILING_IN_PYPY && PY_VERSION_HEX >= 0x03090000
+  0, /*tp_pypy_flags*/
+  #endif
 };
 
-static struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_16_make_enum_writer *__pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_16_make_enum_writer[8];
-static int __pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_16_make_enum_writer = 0;
+static struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_4_make_map_reader *__pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_4_make_map_reader[8];
+static int __pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_4_make_map_reader = 0;
 
-static PyObject *__pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_16_make_enum_writer(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+static PyObject *__pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_4_make_map_reader(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
   PyObject *o;
-  if (CYTHON_COMPILING_IN_CPYTHON && likely((__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_16_make_enum_writer > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_16_make_enum_writer)))) {
-    o = (PyObject*)__pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_16_make_enum_writer[--__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_16_make_enum_writer];
-    memset(o, 0, sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_16_make_enum_writer));
+  if (CYTHON_COMPILING_IN_CPYTHON && likely((__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_4_make_map_reader > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_4_make_map_reader)))) {
+    o = (PyObject*)__pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_4_make_map_reader[--__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_4_make_map_reader];
+    memset(o, 0, sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_4_make_map_reader));
     (void) PyObject_INIT(o, t);
     PyObject_GC_Track(o);
   } else {
@@ -25290,49 +23446,54 @@ static PyObject *__pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_16_make_e
   return o;
 }
 
-static void __pyx_tp_dealloc_6spavro_11fast_binary___pyx_scope_struct_16_make_enum_writer(PyObject *o) {
-  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_16_make_enum_writer *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_16_make_enum_writer *)o;
+static void __pyx_tp_dealloc_6spavro_11fast_binary___pyx_scope_struct_4_make_map_reader(PyObject *o) {
+  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_4_make_map_reader *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_4_make_map_reader *)o;
   PyObject_GC_UnTrack(o);
   Py_CLEAR(p->__pyx_v_schema);
-  Py_CLEAR(p->__pyx_v_symbols);
-  if (CYTHON_COMPILING_IN_CPYTHON && ((__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_16_make_enum_writer < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_16_make_enum_writer)))) {
-    __pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_16_make_enum_writer[__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_16_make_enum_writer++] = ((struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_16_make_enum_writer *)o);
+  Py_CLEAR(p->__pyx_v_value_reader);
+  if (CYTHON_COMPILING_IN_CPYTHON && ((__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_4_make_map_reader < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_4_make_map_reader)))) {
+    __pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_4_make_map_reader[__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_4_make_map_reader++] = ((struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_4_make_map_reader *)o);
   } else {
     (*Py_TYPE(o)->tp_free)(o);
   }
 }
 
-static int __pyx_tp_traverse_6spavro_11fast_binary___pyx_scope_struct_16_make_enum_writer(PyObject *o, visitproc v, void *a) {
+static int __pyx_tp_traverse_6spavro_11fast_binary___pyx_scope_struct_4_make_map_reader(PyObject *o, visitproc v, void *a) {
   int e;
-  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_16_make_enum_writer *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_16_make_enum_writer *)o;
+  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_4_make_map_reader *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_4_make_map_reader *)o;
   if (p->__pyx_v_schema) {
     e = (*v)(p->__pyx_v_schema, a); if (e) return e;
   }
-  if (p->__pyx_v_symbols) {
-    e = (*v)(p->__pyx_v_symbols, a); if (e) return e;
+  if (p->__pyx_v_value_reader) {
+    e = (*v)(p->__pyx_v_value_reader, a); if (e) return e;
   }
   return 0;
 }
 
-static int __pyx_tp_clear_6spavro_11fast_binary___pyx_scope_struct_16_make_enum_writer(PyObject *o) {
+static int __pyx_tp_clear_6spavro_11fast_binary___pyx_scope_struct_4_make_map_reader(PyObject *o) {
   PyObject* tmp;
-  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_16_make_enum_writer *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_16_make_enum_writer *)o;
+  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_4_make_map_reader *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_4_make_map_reader *)o;
   tmp = ((PyObject*)p->__pyx_v_schema);
   p->__pyx_v_schema = Py_None; Py_INCREF(Py_None);
   Py_XDECREF(tmp);
-  tmp = ((PyObject*)p->__pyx_v_symbols);
-  p->__pyx_v_symbols = ((PyObject*)Py_None); Py_INCREF(Py_None);
+  tmp = ((PyObject*)p->__pyx_v_value_reader);
+  p->__pyx_v_value_reader = Py_None; Py_INCREF(Py_None);
   Py_XDECREF(tmp);
   return 0;
 }
 
-static PyTypeObject __pyx_type_6spavro_11fast_binary___pyx_scope_struct_16_make_enum_writer = {
+static PyTypeObject __pyx_type_6spavro_11fast_binary___pyx_scope_struct_4_make_map_reader = {
   PyVarObject_HEAD_INIT(0, 0)
-  "spavro.fast_binary.__pyx_scope_struct_16_make_enum_writer", /*tp_name*/
-  sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_16_make_enum_writer), /*tp_basicsize*/
+  "spavro.fast_binary.__pyx_scope_struct_4_make_map_reader", /*tp_name*/
+  sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_4_make_map_reader), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc_6spavro_11fast_binary___pyx_scope_struct_16_make_enum_writer, /*tp_dealloc*/
+  __pyx_tp_dealloc_6spavro_11fast_binary___pyx_scope_struct_4_make_map_reader, /*tp_dealloc*/
+  #if PY_VERSION_HEX < 0x030800b4
   0, /*tp_print*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4
+  0, /*tp_vectorcall_offset*/
+  #endif
   0, /*tp_getattr*/
   0, /*tp_setattr*/
   #if PY_MAJOR_VERSION < 3
@@ -25353,8 +23514,8 @@ static PyTypeObject __pyx_type_6spavro_11fast_binary___pyx_scope_struct_16_make_
   0, /*tp_as_buffer*/
   Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
   0, /*tp_doc*/
-  __pyx_tp_traverse_6spavro_11fast_binary___pyx_scope_struct_16_make_enum_writer, /*tp_traverse*/
-  __pyx_tp_clear_6spavro_11fast_binary___pyx_scope_struct_16_make_enum_writer, /*tp_clear*/
+  __pyx_tp_traverse_6spavro_11fast_binary___pyx_scope_struct_4_make_map_reader, /*tp_traverse*/
+  __pyx_tp_clear_6spavro_11fast_binary___pyx_scope_struct_4_make_map_reader, /*tp_clear*/
   0, /*tp_richcompare*/
   0, /*tp_weaklistoffset*/
   0, /*tp_iter*/
@@ -25369,7 +23530,7 @@ static PyTypeObject __pyx_type_6spavro_11fast_binary___pyx_scope_struct_16_make_
   0, /*tp_dictoffset*/
   0, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_16_make_enum_writer, /*tp_new*/
+  __pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_4_make_map_reader, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -25382,16 +23543,25 @@ static PyTypeObject __pyx_type_6spavro_11fast_binary___pyx_scope_struct_16_make_
   #if PY_VERSION_HEX >= 0x030400a1
   0, /*tp_finalize*/
   #endif
+  #if PY_VERSION_HEX >= 0x030800b1 && (!CYTHON_COMPILING_IN_PYPY || PYPY_VERSION_NUM >= 0x07030800)
+  0, /*tp_vectorcall*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4 && PY_VERSION_HEX < 0x03090000
+  0, /*tp_print*/
+  #endif
+  #if CYTHON_COMPILING_IN_PYPY && PY_VERSION_HEX >= 0x03090000
+  0, /*tp_pypy_flags*/
+  #endif
 };
 
-static struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_17_make_record_writer *__pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_17_make_record_writer[8];
-static int __pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_17_make_record_writer = 0;
+static struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_5_make_fixed_reader *__pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_5_make_fixed_reader[8];
+static int __pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_5_make_fixed_reader = 0;
 
-static PyObject *__pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_17_make_record_writer(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+static PyObject *__pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_5_make_fixed_reader(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
   PyObject *o;
-  if (CYTHON_COMPILING_IN_CPYTHON && likely((__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_17_make_record_writer > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_17_make_record_writer)))) {
-    o = (PyObject*)__pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_17_make_record_writer[--__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_17_make_record_writer];
-    memset(o, 0, sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_17_make_record_writer));
+  if (CYTHON_COMPILING_IN_CPYTHON && likely((__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_5_make_fixed_reader > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_5_make_fixed_reader)))) {
+    o = (PyObject*)__pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_5_make_fixed_reader[--__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_5_make_fixed_reader];
+    memset(o, 0, sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_5_make_fixed_reader));
     (void) PyObject_INIT(o, t);
     PyObject_GC_Track(o);
   } else {
@@ -25401,49 +23571,47 @@ static PyObject *__pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_17_make_r
   return o;
 }
 
-static void __pyx_tp_dealloc_6spavro_11fast_binary___pyx_scope_struct_17_make_record_writer(PyObject *o) {
-  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_17_make_record_writer *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_17_make_record_writer *)o;
+static void __pyx_tp_dealloc_6spavro_11fast_binary___pyx_scope_struct_5_make_fixed_reader(PyObject *o) {
+  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_5_make_fixed_reader *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_5_make_fixed_reader *)o;
   PyObject_GC_UnTrack(o);
-  Py_CLEAR(p->__pyx_v_fields);
   Py_CLEAR(p->__pyx_v_schema);
-  if (CYTHON_COMPILING_IN_CPYTHON && ((__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_17_make_record_writer < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_17_make_record_writer)))) {
-    __pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_17_make_record_writer[__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_17_make_record_writer++] = ((struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_17_make_record_writer *)o);
+  if (CYTHON_COMPILING_IN_CPYTHON && ((__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_5_make_fixed_reader < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_5_make_fixed_reader)))) {
+    __pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_5_make_fixed_reader[__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_5_make_fixed_reader++] = ((struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_5_make_fixed_reader *)o);
   } else {
     (*Py_TYPE(o)->tp_free)(o);
   }
 }
 
-static int __pyx_tp_traverse_6spavro_11fast_binary___pyx_scope_struct_17_make_record_writer(PyObject *o, visitproc v, void *a) {
+static int __pyx_tp_traverse_6spavro_11fast_binary___pyx_scope_struct_5_make_fixed_reader(PyObject *o, visitproc v, void *a) {
   int e;
-  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_17_make_record_writer *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_17_make_record_writer *)o;
-  if (p->__pyx_v_fields) {
-    e = (*v)(p->__pyx_v_fields, a); if (e) return e;
-  }
+  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_5_make_fixed_reader *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_5_make_fixed_reader *)o;
   if (p->__pyx_v_schema) {
     e = (*v)(p->__pyx_v_schema, a); if (e) return e;
   }
   return 0;
 }
 
-static int __pyx_tp_clear_6spavro_11fast_binary___pyx_scope_struct_17_make_record_writer(PyObject *o) {
+static int __pyx_tp_clear_6spavro_11fast_binary___pyx_scope_struct_5_make_fixed_reader(PyObject *o) {
   PyObject* tmp;
-  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_17_make_record_writer *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_17_make_record_writer *)o;
-  tmp = ((PyObject*)p->__pyx_v_fields);
-  p->__pyx_v_fields = ((PyObject*)Py_None); Py_INCREF(Py_None);
-  Py_XDECREF(tmp);
+  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_5_make_fixed_reader *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_5_make_fixed_reader *)o;
   tmp = ((PyObject*)p->__pyx_v_schema);
   p->__pyx_v_schema = Py_None; Py_INCREF(Py_None);
   Py_XDECREF(tmp);
   return 0;
 }
 
-static PyTypeObject __pyx_type_6spavro_11fast_binary___pyx_scope_struct_17_make_record_writer = {
+static PyTypeObject __pyx_type_6spavro_11fast_binary___pyx_scope_struct_5_make_fixed_reader = {
   PyVarObject_HEAD_INIT(0, 0)
-  "spavro.fast_binary.__pyx_scope_struct_17_make_record_writer", /*tp_name*/
-  sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_17_make_record_writer), /*tp_basicsize*/
+  "spavro.fast_binary.__pyx_scope_struct_5_make_fixed_reader", /*tp_name*/
+  sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_5_make_fixed_reader), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc_6spavro_11fast_binary___pyx_scope_struct_17_make_record_writer, /*tp_dealloc*/
+  __pyx_tp_dealloc_6spavro_11fast_binary___pyx_scope_struct_5_make_fixed_reader, /*tp_dealloc*/
+  #if PY_VERSION_HEX < 0x030800b4
   0, /*tp_print*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4
+  0, /*tp_vectorcall_offset*/
+  #endif
   0, /*tp_getattr*/
   0, /*tp_setattr*/
   #if PY_MAJOR_VERSION < 3
@@ -25464,8 +23632,8 @@ static PyTypeObject __pyx_type_6spavro_11fast_binary___pyx_scope_struct_17_make_
   0, /*tp_as_buffer*/
   Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
   0, /*tp_doc*/
-  __pyx_tp_traverse_6spavro_11fast_binary___pyx_scope_struct_17_make_record_writer, /*tp_traverse*/
-  __pyx_tp_clear_6spavro_11fast_binary___pyx_scope_struct_17_make_record_writer, /*tp_clear*/
+  __pyx_tp_traverse_6spavro_11fast_binary___pyx_scope_struct_5_make_fixed_reader, /*tp_traverse*/
+  __pyx_tp_clear_6spavro_11fast_binary___pyx_scope_struct_5_make_fixed_reader, /*tp_clear*/
   0, /*tp_richcompare*/
   0, /*tp_weaklistoffset*/
   0, /*tp_iter*/
@@ -25480,7 +23648,7 @@ static PyTypeObject __pyx_type_6spavro_11fast_binary___pyx_scope_struct_17_make_
   0, /*tp_dictoffset*/
   0, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_17_make_record_writer, /*tp_new*/
+  __pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_5_make_fixed_reader, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -25493,16 +23661,25 @@ static PyTypeObject __pyx_type_6spavro_11fast_binary___pyx_scope_struct_17_make_
   #if PY_VERSION_HEX >= 0x030400a1
   0, /*tp_finalize*/
   #endif
+  #if PY_VERSION_HEX >= 0x030800b1 && (!CYTHON_COMPILING_IN_PYPY || PYPY_VERSION_NUM >= 0x07030800)
+  0, /*tp_vectorcall*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4 && PY_VERSION_HEX < 0x03090000
+  0, /*tp_print*/
+  #endif
+  #if CYTHON_COMPILING_IN_PYPY && PY_VERSION_HEX >= 0x03090000
+  0, /*tp_pypy_flags*/
+  #endif
 };
 
-static struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_18_make_array_writer *__pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_18_make_array_writer[8];
-static int __pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_18_make_array_writer = 0;
+static struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_6_make_skip_reader *__pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_6_make_skip_reader[8];
+static int __pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_6_make_skip_reader = 0;
 
-static PyObject *__pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_18_make_array_writer(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+static PyObject *__pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_6_make_skip_reader(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
   PyObject *o;
-  if (CYTHON_COMPILING_IN_CPYTHON && likely((__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_18_make_array_writer > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_18_make_array_writer)))) {
-    o = (PyObject*)__pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_18_make_array_writer[--__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_18_make_array_writer];
-    memset(o, 0, sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_18_make_array_writer));
+  if (CYTHON_COMPILING_IN_CPYTHON && likely((__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_6_make_skip_reader > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_6_make_skip_reader)))) {
+    o = (PyObject*)__pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_6_make_skip_reader[--__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_6_make_skip_reader];
+    memset(o, 0, sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_6_make_skip_reader));
     (void) PyObject_INIT(o, t);
     PyObject_GC_Track(o);
   } else {
@@ -25512,49 +23689,54 @@ static PyObject *__pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_18_make_a
   return o;
 }
 
-static void __pyx_tp_dealloc_6spavro_11fast_binary___pyx_scope_struct_18_make_array_writer(PyObject *o) {
-  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_18_make_array_writer *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_18_make_array_writer *)o;
+static void __pyx_tp_dealloc_6spavro_11fast_binary___pyx_scope_struct_6_make_skip_reader(PyObject *o) {
+  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_6_make_skip_reader *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_6_make_skip_reader *)o;
   PyObject_GC_UnTrack(o);
-  Py_CLEAR(p->__pyx_v_item_writer);
   Py_CLEAR(p->__pyx_v_schema);
-  if (CYTHON_COMPILING_IN_CPYTHON && ((__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_18_make_array_writer < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_18_make_array_writer)))) {
-    __pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_18_make_array_writer[__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_18_make_array_writer++] = ((struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_18_make_array_writer *)o);
+  Py_CLEAR(p->__pyx_v_value_reader);
+  if (CYTHON_COMPILING_IN_CPYTHON && ((__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_6_make_skip_reader < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_6_make_skip_reader)))) {
+    __pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_6_make_skip_reader[__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_6_make_skip_reader++] = ((struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_6_make_skip_reader *)o);
   } else {
     (*Py_TYPE(o)->tp_free)(o);
   }
 }
 
-static int __pyx_tp_traverse_6spavro_11fast_binary___pyx_scope_struct_18_make_array_writer(PyObject *o, visitproc v, void *a) {
+static int __pyx_tp_traverse_6spavro_11fast_binary___pyx_scope_struct_6_make_skip_reader(PyObject *o, visitproc v, void *a) {
   int e;
-  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_18_make_array_writer *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_18_make_array_writer *)o;
-  if (p->__pyx_v_item_writer) {
-    e = (*v)(p->__pyx_v_item_writer, a); if (e) return e;
-  }
+  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_6_make_skip_reader *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_6_make_skip_reader *)o;
   if (p->__pyx_v_schema) {
     e = (*v)(p->__pyx_v_schema, a); if (e) return e;
   }
+  if (p->__pyx_v_value_reader) {
+    e = (*v)(p->__pyx_v_value_reader, a); if (e) return e;
+  }
   return 0;
 }
 
-static int __pyx_tp_clear_6spavro_11fast_binary___pyx_scope_struct_18_make_array_writer(PyObject *o) {
+static int __pyx_tp_clear_6spavro_11fast_binary___pyx_scope_struct_6_make_skip_reader(PyObject *o) {
   PyObject* tmp;
-  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_18_make_array_writer *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_18_make_array_writer *)o;
-  tmp = ((PyObject*)p->__pyx_v_item_writer);
-  p->__pyx_v_item_writer = Py_None; Py_INCREF(Py_None);
-  Py_XDECREF(tmp);
+  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_6_make_skip_reader *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_6_make_skip_reader *)o;
   tmp = ((PyObject*)p->__pyx_v_schema);
   p->__pyx_v_schema = Py_None; Py_INCREF(Py_None);
   Py_XDECREF(tmp);
+  tmp = ((PyObject*)p->__pyx_v_value_reader);
+  p->__pyx_v_value_reader = Py_None; Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
   return 0;
 }
 
-static PyTypeObject __pyx_type_6spavro_11fast_binary___pyx_scope_struct_18_make_array_writer = {
+static PyTypeObject __pyx_type_6spavro_11fast_binary___pyx_scope_struct_6_make_skip_reader = {
   PyVarObject_HEAD_INIT(0, 0)
-  "spavro.fast_binary.__pyx_scope_struct_18_make_array_writer", /*tp_name*/
-  sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_18_make_array_writer), /*tp_basicsize*/
+  "spavro.fast_binary.__pyx_scope_struct_6_make_skip_reader", /*tp_name*/
+  sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_6_make_skip_reader), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc_6spavro_11fast_binary___pyx_scope_struct_18_make_array_writer, /*tp_dealloc*/
+  __pyx_tp_dealloc_6spavro_11fast_binary___pyx_scope_struct_6_make_skip_reader, /*tp_dealloc*/
+  #if PY_VERSION_HEX < 0x030800b4
   0, /*tp_print*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4
+  0, /*tp_vectorcall_offset*/
+  #endif
   0, /*tp_getattr*/
   0, /*tp_setattr*/
   #if PY_MAJOR_VERSION < 3
@@ -25575,8 +23757,8 @@ static PyTypeObject __pyx_type_6spavro_11fast_binary___pyx_scope_struct_18_make_
   0, /*tp_as_buffer*/
   Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
   0, /*tp_doc*/
-  __pyx_tp_traverse_6spavro_11fast_binary___pyx_scope_struct_18_make_array_writer, /*tp_traverse*/
-  __pyx_tp_clear_6spavro_11fast_binary___pyx_scope_struct_18_make_array_writer, /*tp_clear*/
+  __pyx_tp_traverse_6spavro_11fast_binary___pyx_scope_struct_6_make_skip_reader, /*tp_traverse*/
+  __pyx_tp_clear_6spavro_11fast_binary___pyx_scope_struct_6_make_skip_reader, /*tp_clear*/
   0, /*tp_richcompare*/
   0, /*tp_weaklistoffset*/
   0, /*tp_iter*/
@@ -25591,7 +23773,7 @@ static PyTypeObject __pyx_type_6spavro_11fast_binary___pyx_scope_struct_18_make_
   0, /*tp_dictoffset*/
   0, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_18_make_array_writer, /*tp_new*/
+  __pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_6_make_skip_reader, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -25604,16 +23786,25 @@ static PyTypeObject __pyx_type_6spavro_11fast_binary___pyx_scope_struct_18_make_
   #if PY_VERSION_HEX >= 0x030400a1
   0, /*tp_finalize*/
   #endif
+  #if PY_VERSION_HEX >= 0x030800b1 && (!CYTHON_COMPILING_IN_PYPY || PYPY_VERSION_NUM >= 0x07030800)
+  0, /*tp_vectorcall*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4 && PY_VERSION_HEX < 0x03090000
+  0, /*tp_print*/
+  #endif
+  #if CYTHON_COMPILING_IN_PYPY && PY_VERSION_HEX >= 0x03090000
+  0, /*tp_pypy_flags*/
+  #endif
 };
 
-static struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_19_make_map_writer *__pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_19_make_map_writer[8];
-static int __pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_19_make_map_writer = 0;
+static struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_7_make_default_reader *__pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_7_make_default_reader[8];
+static int __pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_7_make_default_reader = 0;
 
-static PyObject *__pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_19_make_map_writer(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+static PyObject *__pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_7_make_default_reader(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
   PyObject *o;
-  if (CYTHON_COMPILING_IN_CPYTHON && likely((__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_19_make_map_writer > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_19_make_map_writer)))) {
-    o = (PyObject*)__pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_19_make_map_writer[--__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_19_make_map_writer];
-    memset(o, 0, sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_19_make_map_writer));
+  if (CYTHON_COMPILING_IN_CPYTHON && likely((__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_7_make_default_reader > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_7_make_default_reader)))) {
+    o = (PyObject*)__pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_7_make_default_reader[--__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_7_make_default_reader];
+    memset(o, 0, sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_7_make_default_reader));
     (void) PyObject_INIT(o, t);
     PyObject_GC_Track(o);
   } else {
@@ -25623,49 +23814,54 @@ static PyObject *__pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_19_make_m
   return o;
 }
 
-static void __pyx_tp_dealloc_6spavro_11fast_binary___pyx_scope_struct_19_make_map_writer(PyObject *o) {
-  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_19_make_map_writer *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_19_make_map_writer *)o;
+static void __pyx_tp_dealloc_6spavro_11fast_binary___pyx_scope_struct_7_make_default_reader(PyObject *o) {
+  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_7_make_default_reader *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_7_make_default_reader *)o;
   PyObject_GC_UnTrack(o);
-  Py_CLEAR(p->__pyx_v_map_value_writer);
   Py_CLEAR(p->__pyx_v_schema);
-  if (CYTHON_COMPILING_IN_CPYTHON && ((__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_19_make_map_writer < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_19_make_map_writer)))) {
-    __pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_19_make_map_writer[__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_19_make_map_writer++] = ((struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_19_make_map_writer *)o);
+  Py_CLEAR(p->__pyx_v_value);
+  if (CYTHON_COMPILING_IN_CPYTHON && ((__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_7_make_default_reader < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_7_make_default_reader)))) {
+    __pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_7_make_default_reader[__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_7_make_default_reader++] = ((struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_7_make_default_reader *)o);
   } else {
     (*Py_TYPE(o)->tp_free)(o);
   }
 }
 
-static int __pyx_tp_traverse_6spavro_11fast_binary___pyx_scope_struct_19_make_map_writer(PyObject *o, visitproc v, void *a) {
+static int __pyx_tp_traverse_6spavro_11fast_binary___pyx_scope_struct_7_make_default_reader(PyObject *o, visitproc v, void *a) {
   int e;
-  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_19_make_map_writer *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_19_make_map_writer *)o;
-  if (p->__pyx_v_map_value_writer) {
-    e = (*v)(p->__pyx_v_map_value_writer, a); if (e) return e;
-  }
+  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_7_make_default_reader *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_7_make_default_reader *)o;
   if (p->__pyx_v_schema) {
     e = (*v)(p->__pyx_v_schema, a); if (e) return e;
   }
+  if (p->__pyx_v_value) {
+    e = (*v)(p->__pyx_v_value, a); if (e) return e;
+  }
   return 0;
 }
 
-static int __pyx_tp_clear_6spavro_11fast_binary___pyx_scope_struct_19_make_map_writer(PyObject *o) {
+static int __pyx_tp_clear_6spavro_11fast_binary___pyx_scope_struct_7_make_default_reader(PyObject *o) {
   PyObject* tmp;
-  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_19_make_map_writer *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_19_make_map_writer *)o;
-  tmp = ((PyObject*)p->__pyx_v_map_value_writer);
-  p->__pyx_v_map_value_writer = Py_None; Py_INCREF(Py_None);
-  Py_XDECREF(tmp);
+  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_7_make_default_reader *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_7_make_default_reader *)o;
   tmp = ((PyObject*)p->__pyx_v_schema);
   p->__pyx_v_schema = Py_None; Py_INCREF(Py_None);
   Py_XDECREF(tmp);
+  tmp = ((PyObject*)p->__pyx_v_value);
+  p->__pyx_v_value = Py_None; Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
   return 0;
 }
 
-static PyTypeObject __pyx_type_6spavro_11fast_binary___pyx_scope_struct_19_make_map_writer = {
+static PyTypeObject __pyx_type_6spavro_11fast_binary___pyx_scope_struct_7_make_default_reader = {
   PyVarObject_HEAD_INIT(0, 0)
-  "spavro.fast_binary.__pyx_scope_struct_19_make_map_writer", /*tp_name*/
-  sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_19_make_map_writer), /*tp_basicsize*/
+  "spavro.fast_binary.__pyx_scope_struct_7_make_default_reader", /*tp_name*/
+  sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_7_make_default_reader), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc_6spavro_11fast_binary___pyx_scope_struct_19_make_map_writer, /*tp_dealloc*/
+  __pyx_tp_dealloc_6spavro_11fast_binary___pyx_scope_struct_7_make_default_reader, /*tp_dealloc*/
+  #if PY_VERSION_HEX < 0x030800b4
   0, /*tp_print*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4
+  0, /*tp_vectorcall_offset*/
+  #endif
   0, /*tp_getattr*/
   0, /*tp_setattr*/
   #if PY_MAJOR_VERSION < 3
@@ -25686,8 +23882,8 @@ static PyTypeObject __pyx_type_6spavro_11fast_binary___pyx_scope_struct_19_make_
   0, /*tp_as_buffer*/
   Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
   0, /*tp_doc*/
-  __pyx_tp_traverse_6spavro_11fast_binary___pyx_scope_struct_19_make_map_writer, /*tp_traverse*/
-  __pyx_tp_clear_6spavro_11fast_binary___pyx_scope_struct_19_make_map_writer, /*tp_clear*/
+  __pyx_tp_traverse_6spavro_11fast_binary___pyx_scope_struct_7_make_default_reader, /*tp_traverse*/
+  __pyx_tp_clear_6spavro_11fast_binary___pyx_scope_struct_7_make_default_reader, /*tp_clear*/
   0, /*tp_richcompare*/
   0, /*tp_weaklistoffset*/
   0, /*tp_iter*/
@@ -25702,7 +23898,7 @@ static PyTypeObject __pyx_type_6spavro_11fast_binary___pyx_scope_struct_19_make_
   0, /*tp_dictoffset*/
   0, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_19_make_map_writer, /*tp_new*/
+  __pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_7_make_default_reader, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -25715,16 +23911,25 @@ static PyTypeObject __pyx_type_6spavro_11fast_binary___pyx_scope_struct_19_make_
   #if PY_VERSION_HEX >= 0x030400a1
   0, /*tp_finalize*/
   #endif
+  #if PY_VERSION_HEX >= 0x030800b1 && (!CYTHON_COMPILING_IN_PYPY || PYPY_VERSION_NUM >= 0x07030800)
+  0, /*tp_vectorcall*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4 && PY_VERSION_HEX < 0x03090000
+  0, /*tp_print*/
+  #endif
+  #if CYTHON_COMPILING_IN_PYPY && PY_VERSION_HEX >= 0x03090000
+  0, /*tp_pypy_flags*/
+  #endif
 };
 
-static struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_20_make_boolean_writer *__pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_20_make_boolean_writer[8];
-static int __pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_20_make_boolean_writer = 0;
+static struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_8_make_record_check *__pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_8_make_record_check[8];
+static int __pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_8_make_record_check = 0;
 
-static PyObject *__pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_20_make_boolean_writer(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+static PyObject *__pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_8_make_record_check(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
   PyObject *o;
-  if (CYTHON_COMPILING_IN_CPYTHON && likely((__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_20_make_boolean_writer > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_20_make_boolean_writer)))) {
-    o = (PyObject*)__pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_20_make_boolean_writer[--__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_20_make_boolean_writer];
-    memset(o, 0, sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_20_make_boolean_writer));
+  if (CYTHON_COMPILING_IN_CPYTHON && likely((__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_8_make_record_check > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_8_make_record_check)))) {
+    o = (PyObject*)__pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_8_make_record_check[--__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_8_make_record_check];
+    memset(o, 0, sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_8_make_record_check));
     (void) PyObject_INIT(o, t);
     PyObject_GC_Track(o);
   } else {
@@ -25734,42 +23939,47 @@ static PyObject *__pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_20_make_b
   return o;
 }
 
-static void __pyx_tp_dealloc_6spavro_11fast_binary___pyx_scope_struct_20_make_boolean_writer(PyObject *o) {
-  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_20_make_boolean_writer *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_20_make_boolean_writer *)o;
+static void __pyx_tp_dealloc_6spavro_11fast_binary___pyx_scope_struct_8_make_record_check(PyObject *o) {
+  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_8_make_record_check *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_8_make_record_check *)o;
   PyObject_GC_UnTrack(o);
-  Py_CLEAR(p->__pyx_v_schema);
-  if (CYTHON_COMPILING_IN_CPYTHON && ((__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_20_make_boolean_writer < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_20_make_boolean_writer)))) {
-    __pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_20_make_boolean_writer[__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_20_make_boolean_writer++] = ((struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_20_make_boolean_writer *)o);
+  Py_CLEAR(p->__pyx_v_fields);
+  if (CYTHON_COMPILING_IN_CPYTHON && ((__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_8_make_record_check < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_8_make_record_check)))) {
+    __pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_8_make_record_check[__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_8_make_record_check++] = ((struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_8_make_record_check *)o);
   } else {
     (*Py_TYPE(o)->tp_free)(o);
   }
 }
 
-static int __pyx_tp_traverse_6spavro_11fast_binary___pyx_scope_struct_20_make_boolean_writer(PyObject *o, visitproc v, void *a) {
+static int __pyx_tp_traverse_6spavro_11fast_binary___pyx_scope_struct_8_make_record_check(PyObject *o, visitproc v, void *a) {
   int e;
-  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_20_make_boolean_writer *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_20_make_boolean_writer *)o;
-  if (p->__pyx_v_schema) {
-    e = (*v)(p->__pyx_v_schema, a); if (e) return e;
+  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_8_make_record_check *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_8_make_record_check *)o;
+  if (p->__pyx_v_fields) {
+    e = (*v)(p->__pyx_v_fields, a); if (e) return e;
   }
   return 0;
 }
 
-static int __pyx_tp_clear_6spavro_11fast_binary___pyx_scope_struct_20_make_boolean_writer(PyObject *o) {
+static int __pyx_tp_clear_6spavro_11fast_binary___pyx_scope_struct_8_make_record_check(PyObject *o) {
   PyObject* tmp;
-  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_20_make_boolean_writer *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_20_make_boolean_writer *)o;
-  tmp = ((PyObject*)p->__pyx_v_schema);
-  p->__pyx_v_schema = Py_None; Py_INCREF(Py_None);
+  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_8_make_record_check *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_8_make_record_check *)o;
+  tmp = ((PyObject*)p->__pyx_v_fields);
+  p->__pyx_v_fields = ((PyObject*)Py_None); Py_INCREF(Py_None);
   Py_XDECREF(tmp);
   return 0;
 }
 
-static PyTypeObject __pyx_type_6spavro_11fast_binary___pyx_scope_struct_20_make_boolean_writer = {
+static PyTypeObject __pyx_type_6spavro_11fast_binary___pyx_scope_struct_8_make_record_check = {
   PyVarObject_HEAD_INIT(0, 0)
-  "spavro.fast_binary.__pyx_scope_struct_20_make_boolean_writer", /*tp_name*/
-  sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_20_make_boolean_writer), /*tp_basicsize*/
+  "spavro.fast_binary.__pyx_scope_struct_8_make_record_check", /*tp_name*/
+  sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_8_make_record_check), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc_6spavro_11fast_binary___pyx_scope_struct_20_make_boolean_writer, /*tp_dealloc*/
+  __pyx_tp_dealloc_6spavro_11fast_binary___pyx_scope_struct_8_make_record_check, /*tp_dealloc*/
+  #if PY_VERSION_HEX < 0x030800b4
   0, /*tp_print*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4
+  0, /*tp_vectorcall_offset*/
+  #endif
   0, /*tp_getattr*/
   0, /*tp_setattr*/
   #if PY_MAJOR_VERSION < 3
@@ -25790,8 +24000,8 @@ static PyTypeObject __pyx_type_6spavro_11fast_binary___pyx_scope_struct_20_make_
   0, /*tp_as_buffer*/
   Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
   0, /*tp_doc*/
-  __pyx_tp_traverse_6spavro_11fast_binary___pyx_scope_struct_20_make_boolean_writer, /*tp_traverse*/
-  __pyx_tp_clear_6spavro_11fast_binary___pyx_scope_struct_20_make_boolean_writer, /*tp_clear*/
+  __pyx_tp_traverse_6spavro_11fast_binary___pyx_scope_struct_8_make_record_check, /*tp_traverse*/
+  __pyx_tp_clear_6spavro_11fast_binary___pyx_scope_struct_8_make_record_check, /*tp_clear*/
   0, /*tp_richcompare*/
   0, /*tp_weaklistoffset*/
   0, /*tp_iter*/
@@ -25806,7 +24016,7 @@ static PyTypeObject __pyx_type_6spavro_11fast_binary___pyx_scope_struct_20_make_
   0, /*tp_dictoffset*/
   0, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_20_make_boolean_writer, /*tp_new*/
+  __pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_8_make_record_check, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -25819,16 +24029,25 @@ static PyTypeObject __pyx_type_6spavro_11fast_binary___pyx_scope_struct_20_make_
   #if PY_VERSION_HEX >= 0x030400a1
   0, /*tp_finalize*/
   #endif
+  #if PY_VERSION_HEX >= 0x030800b1 && (!CYTHON_COMPILING_IN_PYPY || PYPY_VERSION_NUM >= 0x07030800)
+  0, /*tp_vectorcall*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4 && PY_VERSION_HEX < 0x03090000
+  0, /*tp_print*/
+  #endif
+  #if CYTHON_COMPILING_IN_PYPY && PY_VERSION_HEX >= 0x03090000
+  0, /*tp_pypy_flags*/
+  #endif
 };
 
-static struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_21_make_fixed_writer *__pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_21_make_fixed_writer[8];
-static int __pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_21_make_fixed_writer = 0;
+static struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_9_make_enum_check *__pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_9_make_enum_check[8];
+static int __pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_9_make_enum_check = 0;
 
-static PyObject *__pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_21_make_fixed_writer(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+static PyObject *__pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_9_make_enum_check(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
   PyObject *o;
-  if (CYTHON_COMPILING_IN_CPYTHON && likely((__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_21_make_fixed_writer > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_21_make_fixed_writer)))) {
-    o = (PyObject*)__pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_21_make_fixed_writer[--__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_21_make_fixed_writer];
-    memset(o, 0, sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_21_make_fixed_writer));
+  if (CYTHON_COMPILING_IN_CPYTHON && likely((__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_9_make_enum_check > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_9_make_enum_check)))) {
+    o = (PyObject*)__pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_9_make_enum_check[--__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_9_make_enum_check];
+    memset(o, 0, sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_9_make_enum_check));
     (void) PyObject_INIT(o, t);
     PyObject_GC_Track(o);
   } else {
@@ -25838,42 +24057,47 @@ static PyObject *__pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_21_make_f
   return o;
 }
 
-static void __pyx_tp_dealloc_6spavro_11fast_binary___pyx_scope_struct_21_make_fixed_writer(PyObject *o) {
-  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_21_make_fixed_writer *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_21_make_fixed_writer *)o;
+static void __pyx_tp_dealloc_6spavro_11fast_binary___pyx_scope_struct_9_make_enum_check(PyObject *o) {
+  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_9_make_enum_check *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_9_make_enum_check *)o;
   PyObject_GC_UnTrack(o);
-  Py_CLEAR(p->__pyx_v_schema);
-  if (CYTHON_COMPILING_IN_CPYTHON && ((__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_21_make_fixed_writer < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_21_make_fixed_writer)))) {
-    __pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_21_make_fixed_writer[__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_21_make_fixed_writer++] = ((struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_21_make_fixed_writer *)o);
+  Py_CLEAR(p->__pyx_v_symbols);
+  if (CYTHON_COMPILING_IN_CPYTHON && ((__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_9_make_enum_check < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_9_make_enum_check)))) {
+    __pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_9_make_enum_check[__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_9_make_enum_check++] = ((struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_9_make_enum_check *)o);
   } else {
     (*Py_TYPE(o)->tp_free)(o);
   }
 }
 
-static int __pyx_tp_traverse_6spavro_11fast_binary___pyx_scope_struct_21_make_fixed_writer(PyObject *o, visitproc v, void *a) {
+static int __pyx_tp_traverse_6spavro_11fast_binary___pyx_scope_struct_9_make_enum_check(PyObject *o, visitproc v, void *a) {
   int e;
-  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_21_make_fixed_writer *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_21_make_fixed_writer *)o;
-  if (p->__pyx_v_schema) {
-    e = (*v)(p->__pyx_v_schema, a); if (e) return e;
+  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_9_make_enum_check *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_9_make_enum_check *)o;
+  if (p->__pyx_v_symbols) {
+    e = (*v)(p->__pyx_v_symbols, a); if (e) return e;
   }
   return 0;
 }
 
-static int __pyx_tp_clear_6spavro_11fast_binary___pyx_scope_struct_21_make_fixed_writer(PyObject *o) {
+static int __pyx_tp_clear_6spavro_11fast_binary___pyx_scope_struct_9_make_enum_check(PyObject *o) {
   PyObject* tmp;
-  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_21_make_fixed_writer *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_21_make_fixed_writer *)o;
-  tmp = ((PyObject*)p->__pyx_v_schema);
-  p->__pyx_v_schema = Py_None; Py_INCREF(Py_None);
+  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_9_make_enum_check *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_9_make_enum_check *)o;
+  tmp = ((PyObject*)p->__pyx_v_symbols);
+  p->__pyx_v_symbols = ((PyObject*)Py_None); Py_INCREF(Py_None);
   Py_XDECREF(tmp);
   return 0;
 }
 
-static PyTypeObject __pyx_type_6spavro_11fast_binary___pyx_scope_struct_21_make_fixed_writer = {
+static PyTypeObject __pyx_type_6spavro_11fast_binary___pyx_scope_struct_9_make_enum_check = {
   PyVarObject_HEAD_INIT(0, 0)
-  "spavro.fast_binary.__pyx_scope_struct_21_make_fixed_writer", /*tp_name*/
-  sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_21_make_fixed_writer), /*tp_basicsize*/
+  "spavro.fast_binary.__pyx_scope_struct_9_make_enum_check", /*tp_name*/
+  sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_9_make_enum_check), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc_6spavro_11fast_binary___pyx_scope_struct_21_make_fixed_writer, /*tp_dealloc*/
+  __pyx_tp_dealloc_6spavro_11fast_binary___pyx_scope_struct_9_make_enum_check, /*tp_dealloc*/
+  #if PY_VERSION_HEX < 0x030800b4
   0, /*tp_print*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4
+  0, /*tp_vectorcall_offset*/
+  #endif
   0, /*tp_getattr*/
   0, /*tp_setattr*/
   #if PY_MAJOR_VERSION < 3
@@ -25894,8 +24118,8 @@ static PyTypeObject __pyx_type_6spavro_11fast_binary___pyx_scope_struct_21_make_
   0, /*tp_as_buffer*/
   Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
   0, /*tp_doc*/
-  __pyx_tp_traverse_6spavro_11fast_binary___pyx_scope_struct_21_make_fixed_writer, /*tp_traverse*/
-  __pyx_tp_clear_6spavro_11fast_binary___pyx_scope_struct_21_make_fixed_writer, /*tp_clear*/
+  __pyx_tp_traverse_6spavro_11fast_binary___pyx_scope_struct_9_make_enum_check, /*tp_traverse*/
+  __pyx_tp_clear_6spavro_11fast_binary___pyx_scope_struct_9_make_enum_check, /*tp_clear*/
   0, /*tp_richcompare*/
   0, /*tp_weaklistoffset*/
   0, /*tp_iter*/
@@ -25910,7 +24134,7 @@ static PyTypeObject __pyx_type_6spavro_11fast_binary___pyx_scope_struct_21_make_
   0, /*tp_dictoffset*/
   0, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_21_make_fixed_writer, /*tp_new*/
+  __pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_9_make_enum_check, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -25923,16 +24147,25 @@ static PyTypeObject __pyx_type_6spavro_11fast_binary___pyx_scope_struct_21_make_
   #if PY_VERSION_HEX >= 0x030400a1
   0, /*tp_finalize*/
   #endif
+  #if PY_VERSION_HEX >= 0x030800b1 && (!CYTHON_COMPILING_IN_PYPY || PYPY_VERSION_NUM >= 0x07030800)
+  0, /*tp_vectorcall*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4 && PY_VERSION_HEX < 0x03090000
+  0, /*tp_print*/
+  #endif
+  #if CYTHON_COMPILING_IN_PYPY && PY_VERSION_HEX >= 0x03090000
+  0, /*tp_pypy_flags*/
+  #endif
 };
 
-static struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_22_make_int_writer *__pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_22_make_int_writer[8];
-static int __pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_22_make_int_writer = 0;
+static struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_10_make_array_check *__pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_10_make_array_check[8];
+static int __pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_10_make_array_check = 0;
 
-static PyObject *__pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_22_make_int_writer(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+static PyObject *__pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_10_make_array_check(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
   PyObject *o;
-  if (CYTHON_COMPILING_IN_CPYTHON && likely((__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_22_make_int_writer > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_22_make_int_writer)))) {
-    o = (PyObject*)__pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_22_make_int_writer[--__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_22_make_int_writer];
-    memset(o, 0, sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_22_make_int_writer));
+  if (CYTHON_COMPILING_IN_CPYTHON && likely((__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_10_make_array_check > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_10_make_array_check)))) {
+    o = (PyObject*)__pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_10_make_array_check[--__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_10_make_array_check];
+    memset(o, 0, sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_10_make_array_check));
     (void) PyObject_INIT(o, t);
     PyObject_GC_Track(o);
   } else {
@@ -25942,42 +24175,47 @@ static PyObject *__pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_22_make_i
   return o;
 }
 
-static void __pyx_tp_dealloc_6spavro_11fast_binary___pyx_scope_struct_22_make_int_writer(PyObject *o) {
-  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_22_make_int_writer *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_22_make_int_writer *)o;
+static void __pyx_tp_dealloc_6spavro_11fast_binary___pyx_scope_struct_10_make_array_check(PyObject *o) {
+  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_10_make_array_check *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_10_make_array_check *)o;
   PyObject_GC_UnTrack(o);
-  Py_CLEAR(p->__pyx_v_schema);
-  if (CYTHON_COMPILING_IN_CPYTHON && ((__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_22_make_int_writer < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_22_make_int_writer)))) {
-    __pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_22_make_int_writer[__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_22_make_int_writer++] = ((struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_22_make_int_writer *)o);
+  Py_CLEAR(p->__pyx_v_item_check);
+  if (CYTHON_COMPILING_IN_CPYTHON && ((__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_10_make_array_check < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_10_make_array_check)))) {
+    __pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_10_make_array_check[__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_10_make_array_check++] = ((struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_10_make_array_check *)o);
   } else {
     (*Py_TYPE(o)->tp_free)(o);
   }
 }
 
-static int __pyx_tp_traverse_6spavro_11fast_binary___pyx_scope_struct_22_make_int_writer(PyObject *o, visitproc v, void *a) {
+static int __pyx_tp_traverse_6spavro_11fast_binary___pyx_scope_struct_10_make_array_check(PyObject *o, visitproc v, void *a) {
   int e;
-  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_22_make_int_writer *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_22_make_int_writer *)o;
-  if (p->__pyx_v_schema) {
-    e = (*v)(p->__pyx_v_schema, a); if (e) return e;
+  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_10_make_array_check *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_10_make_array_check *)o;
+  if (p->__pyx_v_item_check) {
+    e = (*v)(p->__pyx_v_item_check, a); if (e) return e;
   }
   return 0;
 }
 
-static int __pyx_tp_clear_6spavro_11fast_binary___pyx_scope_struct_22_make_int_writer(PyObject *o) {
+static int __pyx_tp_clear_6spavro_11fast_binary___pyx_scope_struct_10_make_array_check(PyObject *o) {
   PyObject* tmp;
-  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_22_make_int_writer *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_22_make_int_writer *)o;
-  tmp = ((PyObject*)p->__pyx_v_schema);
-  p->__pyx_v_schema = Py_None; Py_INCREF(Py_None);
+  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_10_make_array_check *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_10_make_array_check *)o;
+  tmp = ((PyObject*)p->__pyx_v_item_check);
+  p->__pyx_v_item_check = Py_None; Py_INCREF(Py_None);
   Py_XDECREF(tmp);
   return 0;
 }
 
-static PyTypeObject __pyx_type_6spavro_11fast_binary___pyx_scope_struct_22_make_int_writer = {
+static PyTypeObject __pyx_type_6spavro_11fast_binary___pyx_scope_struct_10_make_array_check = {
   PyVarObject_HEAD_INIT(0, 0)
-  "spavro.fast_binary.__pyx_scope_struct_22_make_int_writer", /*tp_name*/
-  sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_22_make_int_writer), /*tp_basicsize*/
+  "spavro.fast_binary.__pyx_scope_struct_10_make_array_check", /*tp_name*/
+  sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_10_make_array_check), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc_6spavro_11fast_binary___pyx_scope_struct_22_make_int_writer, /*tp_dealloc*/
+  __pyx_tp_dealloc_6spavro_11fast_binary___pyx_scope_struct_10_make_array_check, /*tp_dealloc*/
+  #if PY_VERSION_HEX < 0x030800b4
   0, /*tp_print*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4
+  0, /*tp_vectorcall_offset*/
+  #endif
   0, /*tp_getattr*/
   0, /*tp_setattr*/
   #if PY_MAJOR_VERSION < 3
@@ -25998,8 +24236,8 @@ static PyTypeObject __pyx_type_6spavro_11fast_binary___pyx_scope_struct_22_make_
   0, /*tp_as_buffer*/
   Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
   0, /*tp_doc*/
-  __pyx_tp_traverse_6spavro_11fast_binary___pyx_scope_struct_22_make_int_writer, /*tp_traverse*/
-  __pyx_tp_clear_6spavro_11fast_binary___pyx_scope_struct_22_make_int_writer, /*tp_clear*/
+  __pyx_tp_traverse_6spavro_11fast_binary___pyx_scope_struct_10_make_array_check, /*tp_traverse*/
+  __pyx_tp_clear_6spavro_11fast_binary___pyx_scope_struct_10_make_array_check, /*tp_clear*/
   0, /*tp_richcompare*/
   0, /*tp_weaklistoffset*/
   0, /*tp_iter*/
@@ -26014,7 +24252,7 @@ static PyTypeObject __pyx_type_6spavro_11fast_binary___pyx_scope_struct_22_make_
   0, /*tp_dictoffset*/
   0, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_22_make_int_writer, /*tp_new*/
+  __pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_10_make_array_check, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -26027,16 +24265,25 @@ static PyTypeObject __pyx_type_6spavro_11fast_binary___pyx_scope_struct_22_make_
   #if PY_VERSION_HEX >= 0x030400a1
   0, /*tp_finalize*/
   #endif
+  #if PY_VERSION_HEX >= 0x030800b1 && (!CYTHON_COMPILING_IN_PYPY || PYPY_VERSION_NUM >= 0x07030800)
+  0, /*tp_vectorcall*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4 && PY_VERSION_HEX < 0x03090000
+  0, /*tp_print*/
+  #endif
+  #if CYTHON_COMPILING_IN_PYPY && PY_VERSION_HEX >= 0x03090000
+  0, /*tp_pypy_flags*/
+  #endif
 };
 
-static struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_23_make_long_writer *__pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_23_make_long_writer[8];
-static int __pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_23_make_long_writer = 0;
+static struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_11_make_union_check *__pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_11_make_union_check[8];
+static int __pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_11_make_union_check = 0;
 
-static PyObject *__pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_23_make_long_writer(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+static PyObject *__pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_11_make_union_check(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
   PyObject *o;
-  if (CYTHON_COMPILING_IN_CPYTHON && likely((__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_23_make_long_writer > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_23_make_long_writer)))) {
-    o = (PyObject*)__pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_23_make_long_writer[--__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_23_make_long_writer];
-    memset(o, 0, sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_23_make_long_writer));
+  if (CYTHON_COMPILING_IN_CPYTHON && likely((__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_11_make_union_check > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_11_make_union_check)))) {
+    o = (PyObject*)__pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_11_make_union_check[--__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_11_make_union_check];
+    memset(o, 0, sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_11_make_union_check));
     (void) PyObject_INIT(o, t);
     PyObject_GC_Track(o);
   } else {
@@ -26046,42 +24293,47 @@ static PyObject *__pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_23_make_l
   return o;
 }
 
-static void __pyx_tp_dealloc_6spavro_11fast_binary___pyx_scope_struct_23_make_long_writer(PyObject *o) {
-  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_23_make_long_writer *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_23_make_long_writer *)o;
+static void __pyx_tp_dealloc_6spavro_11fast_binary___pyx_scope_struct_11_make_union_check(PyObject *o) {
+  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_11_make_union_check *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_11_make_union_check *)o;
   PyObject_GC_UnTrack(o);
-  Py_CLEAR(p->__pyx_v_schema);
-  if (CYTHON_COMPILING_IN_CPYTHON && ((__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_23_make_long_writer < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_23_make_long_writer)))) {
-    __pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_23_make_long_writer[__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_23_make_long_writer++] = ((struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_23_make_long_writer *)o);
+  Py_CLEAR(p->__pyx_v_union_checks);
+  if (CYTHON_COMPILING_IN_CPYTHON && ((__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_11_make_union_check < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_11_make_union_check)))) {
+    __pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_11_make_union_check[__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_11_make_union_check++] = ((struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_11_make_union_check *)o);
   } else {
     (*Py_TYPE(o)->tp_free)(o);
   }
 }
 
-static int __pyx_tp_traverse_6spavro_11fast_binary___pyx_scope_struct_23_make_long_writer(PyObject *o, visitproc v, void *a) {
+static int __pyx_tp_traverse_6spavro_11fast_binary___pyx_scope_struct_11_make_union_check(PyObject *o, visitproc v, void *a) {
   int e;
-  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_23_make_long_writer *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_23_make_long_writer *)o;
-  if (p->__pyx_v_schema) {
-    e = (*v)(p->__pyx_v_schema, a); if (e) return e;
+  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_11_make_union_check *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_11_make_union_check *)o;
+  if (p->__pyx_v_union_checks) {
+    e = (*v)(p->__pyx_v_union_checks, a); if (e) return e;
   }
   return 0;
 }
 
-static int __pyx_tp_clear_6spavro_11fast_binary___pyx_scope_struct_23_make_long_writer(PyObject *o) {
+static int __pyx_tp_clear_6spavro_11fast_binary___pyx_scope_struct_11_make_union_check(PyObject *o) {
   PyObject* tmp;
-  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_23_make_long_writer *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_23_make_long_writer *)o;
-  tmp = ((PyObject*)p->__pyx_v_schema);
-  p->__pyx_v_schema = Py_None; Py_INCREF(Py_None);
+  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_11_make_union_check *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_11_make_union_check *)o;
+  tmp = ((PyObject*)p->__pyx_v_union_checks);
+  p->__pyx_v_union_checks = ((PyObject*)Py_None); Py_INCREF(Py_None);
   Py_XDECREF(tmp);
   return 0;
 }
 
-static PyTypeObject __pyx_type_6spavro_11fast_binary___pyx_scope_struct_23_make_long_writer = {
+static PyTypeObject __pyx_type_6spavro_11fast_binary___pyx_scope_struct_11_make_union_check = {
   PyVarObject_HEAD_INIT(0, 0)
-  "spavro.fast_binary.__pyx_scope_struct_23_make_long_writer", /*tp_name*/
-  sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_23_make_long_writer), /*tp_basicsize*/
+  "spavro.fast_binary.__pyx_scope_struct_11_make_union_check", /*tp_name*/
+  sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_11_make_union_check), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc_6spavro_11fast_binary___pyx_scope_struct_23_make_long_writer, /*tp_dealloc*/
+  __pyx_tp_dealloc_6spavro_11fast_binary___pyx_scope_struct_11_make_union_check, /*tp_dealloc*/
+  #if PY_VERSION_HEX < 0x030800b4
   0, /*tp_print*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4
+  0, /*tp_vectorcall_offset*/
+  #endif
   0, /*tp_getattr*/
   0, /*tp_setattr*/
   #if PY_MAJOR_VERSION < 3
@@ -26102,8 +24354,8 @@ static PyTypeObject __pyx_type_6spavro_11fast_binary___pyx_scope_struct_23_make_
   0, /*tp_as_buffer*/
   Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
   0, /*tp_doc*/
-  __pyx_tp_traverse_6spavro_11fast_binary___pyx_scope_struct_23_make_long_writer, /*tp_traverse*/
-  __pyx_tp_clear_6spavro_11fast_binary___pyx_scope_struct_23_make_long_writer, /*tp_clear*/
+  __pyx_tp_traverse_6spavro_11fast_binary___pyx_scope_struct_11_make_union_check, /*tp_traverse*/
+  __pyx_tp_clear_6spavro_11fast_binary___pyx_scope_struct_11_make_union_check, /*tp_clear*/
   0, /*tp_richcompare*/
   0, /*tp_weaklistoffset*/
   0, /*tp_iter*/
@@ -26118,7 +24370,7 @@ static PyTypeObject __pyx_type_6spavro_11fast_binary___pyx_scope_struct_23_make_
   0, /*tp_dictoffset*/
   0, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_23_make_long_writer, /*tp_new*/
+  __pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_11_make_union_check, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -26131,18 +24383,26 @@ static PyTypeObject __pyx_type_6spavro_11fast_binary___pyx_scope_struct_23_make_
   #if PY_VERSION_HEX >= 0x030400a1
   0, /*tp_finalize*/
   #endif
+  #if PY_VERSION_HEX >= 0x030800b1 && (!CYTHON_COMPILING_IN_PYPY || PYPY_VERSION_NUM >= 0x07030800)
+  0, /*tp_vectorcall*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4 && PY_VERSION_HEX < 0x03090000
+  0, /*tp_print*/
+  #endif
+  #if CYTHON_COMPILING_IN_PYPY && PY_VERSION_HEX >= 0x03090000
+  0, /*tp_pypy_flags*/
+  #endif
 };
 
-static struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_24_make_string_writer *__pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_24_make_string_writer[8];
-static int __pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_24_make_string_writer = 0;
+static struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_12_make_fixed_check *__pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_12_make_fixed_check[8];
+static int __pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_12_make_fixed_check = 0;
 
-static PyObject *__pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_24_make_string_writer(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+static PyObject *__pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_12_make_fixed_check(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
   PyObject *o;
-  if (CYTHON_COMPILING_IN_CPYTHON && likely((__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_24_make_string_writer > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_24_make_string_writer)))) {
-    o = (PyObject*)__pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_24_make_string_writer[--__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_24_make_string_writer];
-    memset(o, 0, sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_24_make_string_writer));
+  if (CYTHON_COMPILING_IN_CPYTHON && likely((__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_12_make_fixed_check > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_12_make_fixed_check)))) {
+    o = (PyObject*)__pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_12_make_fixed_check[--__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_12_make_fixed_check];
+    memset(o, 0, sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_12_make_fixed_check));
     (void) PyObject_INIT(o, t);
-    PyObject_GC_Track(o);
   } else {
     o = (*t->tp_alloc)(t, 0);
     if (unlikely(!o)) return 0;
@@ -26150,42 +24410,26 @@ static PyObject *__pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_24_make_s
   return o;
 }
 
-static void __pyx_tp_dealloc_6spavro_11fast_binary___pyx_scope_struct_24_make_string_writer(PyObject *o) {
-  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_24_make_string_writer *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_24_make_string_writer *)o;
-  PyObject_GC_UnTrack(o);
-  Py_CLEAR(p->__pyx_v_schema);
-  if (CYTHON_COMPILING_IN_CPYTHON && ((__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_24_make_string_writer < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_24_make_string_writer)))) {
-    __pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_24_make_string_writer[__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_24_make_string_writer++] = ((struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_24_make_string_writer *)o);
+static void __pyx_tp_dealloc_6spavro_11fast_binary___pyx_scope_struct_12_make_fixed_check(PyObject *o) {
+  if (CYTHON_COMPILING_IN_CPYTHON && ((__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_12_make_fixed_check < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_12_make_fixed_check)))) {
+    __pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_12_make_fixed_check[__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_12_make_fixed_check++] = ((struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_12_make_fixed_check *)o);
   } else {
     (*Py_TYPE(o)->tp_free)(o);
   }
 }
 
-static int __pyx_tp_traverse_6spavro_11fast_binary___pyx_scope_struct_24_make_string_writer(PyObject *o, visitproc v, void *a) {
-  int e;
-  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_24_make_string_writer *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_24_make_string_writer *)o;
-  if (p->__pyx_v_schema) {
-    e = (*v)(p->__pyx_v_schema, a); if (e) return e;
-  }
-  return 0;
-}
-
-static int __pyx_tp_clear_6spavro_11fast_binary___pyx_scope_struct_24_make_string_writer(PyObject *o) {
-  PyObject* tmp;
-  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_24_make_string_writer *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_24_make_string_writer *)o;
-  tmp = ((PyObject*)p->__pyx_v_schema);
-  p->__pyx_v_schema = Py_None; Py_INCREF(Py_None);
-  Py_XDECREF(tmp);
-  return 0;
-}
-
-static PyTypeObject __pyx_type_6spavro_11fast_binary___pyx_scope_struct_24_make_string_writer = {
+static PyTypeObject __pyx_type_6spavro_11fast_binary___pyx_scope_struct_12_make_fixed_check = {
   PyVarObject_HEAD_INIT(0, 0)
-  "spavro.fast_binary.__pyx_scope_struct_24_make_string_writer", /*tp_name*/
-  sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_24_make_string_writer), /*tp_basicsize*/
+  "spavro.fast_binary.__pyx_scope_struct_12_make_fixed_check", /*tp_name*/
+  sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_12_make_fixed_check), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc_6spavro_11fast_binary___pyx_scope_struct_24_make_string_writer, /*tp_dealloc*/
+  __pyx_tp_dealloc_6spavro_11fast_binary___pyx_scope_struct_12_make_fixed_check, /*tp_dealloc*/
+  #if PY_VERSION_HEX < 0x030800b4
   0, /*tp_print*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4
+  0, /*tp_vectorcall_offset*/
+  #endif
   0, /*tp_getattr*/
   0, /*tp_setattr*/
   #if PY_MAJOR_VERSION < 3
@@ -26204,10 +24448,10 @@ static PyTypeObject __pyx_type_6spavro_11fast_binary___pyx_scope_struct_24_make_
   0, /*tp_getattro*/
   0, /*tp_setattro*/
   0, /*tp_as_buffer*/
-  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
+  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER, /*tp_flags*/
   0, /*tp_doc*/
-  __pyx_tp_traverse_6spavro_11fast_binary___pyx_scope_struct_24_make_string_writer, /*tp_traverse*/
-  __pyx_tp_clear_6spavro_11fast_binary___pyx_scope_struct_24_make_string_writer, /*tp_clear*/
+  0, /*tp_traverse*/
+  0, /*tp_clear*/
   0, /*tp_richcompare*/
   0, /*tp_weaklistoffset*/
   0, /*tp_iter*/
@@ -26222,7 +24466,7 @@ static PyTypeObject __pyx_type_6spavro_11fast_binary___pyx_scope_struct_24_make_
   0, /*tp_dictoffset*/
   0, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_24_make_string_writer, /*tp_new*/
+  __pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_12_make_fixed_check, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -26235,17 +24479,27 @@ static PyTypeObject __pyx_type_6spavro_11fast_binary___pyx_scope_struct_24_make_
   #if PY_VERSION_HEX >= 0x030400a1
   0, /*tp_finalize*/
   #endif
+  #if PY_VERSION_HEX >= 0x030800b1 && (!CYTHON_COMPILING_IN_PYPY || PYPY_VERSION_NUM >= 0x07030800)
+  0, /*tp_vectorcall*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4 && PY_VERSION_HEX < 0x03090000
+  0, /*tp_print*/
+  #endif
+  #if CYTHON_COMPILING_IN_PYPY && PY_VERSION_HEX >= 0x03090000
+  0, /*tp_pypy_flags*/
+  #endif
 };
 
-static struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_void____object____long__long___to_py *__pyx_freelist___pyx_scope_struct____Pyx_CFunc_void____object____long__long___to_py[8];
-static int __pyx_freecount___pyx_scope_struct____Pyx_CFunc_void____object____long__long___to_py = 0;
+static struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_13_make_map_check *__pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_13_make_map_check[8];
+static int __pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_13_make_map_check = 0;
 
-static PyObject *__pyx_tp_new___pyx_scope_struct____Pyx_CFunc_void____object____long__long___to_py(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+static PyObject *__pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_13_make_map_check(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
   PyObject *o;
-  if (CYTHON_COMPILING_IN_CPYTHON && likely((__pyx_freecount___pyx_scope_struct____Pyx_CFunc_void____object____long__long___to_py > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_void____object____long__long___to_py)))) {
-    o = (PyObject*)__pyx_freelist___pyx_scope_struct____Pyx_CFunc_void____object____long__long___to_py[--__pyx_freecount___pyx_scope_struct____Pyx_CFunc_void____object____long__long___to_py];
-    memset(o, 0, sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_void____object____long__long___to_py));
+  if (CYTHON_COMPILING_IN_CPYTHON && likely((__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_13_make_map_check > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_13_make_map_check)))) {
+    o = (PyObject*)__pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_13_make_map_check[--__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_13_make_map_check];
+    memset(o, 0, sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_13_make_map_check));
     (void) PyObject_INIT(o, t);
+    PyObject_GC_Track(o);
   } else {
     o = (*t->tp_alloc)(t, 0);
     if (unlikely(!o)) return 0;
@@ -26253,21 +24507,47 @@ static PyObject *__pyx_tp_new___pyx_scope_struct____Pyx_CFunc_void____object____
   return o;
 }
 
-static void __pyx_tp_dealloc___pyx_scope_struct____Pyx_CFunc_void____object____long__long___to_py(PyObject *o) {
-  if (CYTHON_COMPILING_IN_CPYTHON && ((__pyx_freecount___pyx_scope_struct____Pyx_CFunc_void____object____long__long___to_py < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_void____object____long__long___to_py)))) {
-    __pyx_freelist___pyx_scope_struct____Pyx_CFunc_void____object____long__long___to_py[__pyx_freecount___pyx_scope_struct____Pyx_CFunc_void____object____long__long___to_py++] = ((struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_void____object____long__long___to_py *)o);
+static void __pyx_tp_dealloc_6spavro_11fast_binary___pyx_scope_struct_13_make_map_check(PyObject *o) {
+  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_13_make_map_check *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_13_make_map_check *)o;
+  PyObject_GC_UnTrack(o);
+  Py_CLEAR(p->__pyx_v_map_value_check);
+  if (CYTHON_COMPILING_IN_CPYTHON && ((__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_13_make_map_check < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_13_make_map_check)))) {
+    __pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_13_make_map_check[__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_13_make_map_check++] = ((struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_13_make_map_check *)o);
   } else {
     (*Py_TYPE(o)->tp_free)(o);
   }
 }
 
-static PyTypeObject __pyx_scope_struct____Pyx_CFunc_void____object____long__long___to_py = {
+static int __pyx_tp_traverse_6spavro_11fast_binary___pyx_scope_struct_13_make_map_check(PyObject *o, visitproc v, void *a) {
+  int e;
+  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_13_make_map_check *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_13_make_map_check *)o;
+  if (p->__pyx_v_map_value_check) {
+    e = (*v)(p->__pyx_v_map_value_check, a); if (e) return e;
+  }
+  return 0;
+}
+
+static int __pyx_tp_clear_6spavro_11fast_binary___pyx_scope_struct_13_make_map_check(PyObject *o) {
+  PyObject* tmp;
+  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_13_make_map_check *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_13_make_map_check *)o;
+  tmp = ((PyObject*)p->__pyx_v_map_value_check);
+  p->__pyx_v_map_value_check = Py_None; Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  return 0;
+}
+
+static PyTypeObject __pyx_type_6spavro_11fast_binary___pyx_scope_struct_13_make_map_check = {
   PyVarObject_HEAD_INIT(0, 0)
-  "spavro.fast_binary.__pyx_scope_struct____Pyx_CFunc_void____object____long__long___to_py", /*tp_name*/
-  sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_void____object____long__long___to_py), /*tp_basicsize*/
+  "spavro.fast_binary.__pyx_scope_struct_13_make_map_check", /*tp_name*/
+  sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_13_make_map_check), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc___pyx_scope_struct____Pyx_CFunc_void____object____long__long___to_py, /*tp_dealloc*/
+  __pyx_tp_dealloc_6spavro_11fast_binary___pyx_scope_struct_13_make_map_check, /*tp_dealloc*/
+  #if PY_VERSION_HEX < 0x030800b4
   0, /*tp_print*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4
+  0, /*tp_vectorcall_offset*/
+  #endif
   0, /*tp_getattr*/
   0, /*tp_setattr*/
   #if PY_MAJOR_VERSION < 3
@@ -26286,10 +24566,10 @@ static PyTypeObject __pyx_scope_struct____Pyx_CFunc_void____object____long__long
   0, /*tp_getattro*/
   0, /*tp_setattro*/
   0, /*tp_as_buffer*/
-  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER, /*tp_flags*/
+  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
   0, /*tp_doc*/
-  0, /*tp_traverse*/
-  0, /*tp_clear*/
+  __pyx_tp_traverse_6spavro_11fast_binary___pyx_scope_struct_13_make_map_check, /*tp_traverse*/
+  __pyx_tp_clear_6spavro_11fast_binary___pyx_scope_struct_13_make_map_check, /*tp_clear*/
   0, /*tp_richcompare*/
   0, /*tp_weaklistoffset*/
   0, /*tp_iter*/
@@ -26304,7 +24584,7 @@ static PyTypeObject __pyx_scope_struct____Pyx_CFunc_void____object____long__long
   0, /*tp_dictoffset*/
   0, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new___pyx_scope_struct____Pyx_CFunc_void____object____long__long___to_py, /*tp_new*/
+  __pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_13_make_map_check, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -26317,17 +24597,27 @@ static PyTypeObject __pyx_scope_struct____Pyx_CFunc_void____object____long__long
   #if PY_VERSION_HEX >= 0x030400a1
   0, /*tp_finalize*/
   #endif
+  #if PY_VERSION_HEX >= 0x030800b1 && (!CYTHON_COMPILING_IN_PYPY || PYPY_VERSION_NUM >= 0x07030800)
+  0, /*tp_vectorcall*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4 && PY_VERSION_HEX < 0x03090000
+  0, /*tp_print*/
+  #endif
+  #if CYTHON_COMPILING_IN_PYPY && PY_VERSION_HEX >= 0x03090000
+  0, /*tp_pypy_flags*/
+  #endif
 };
 
-static struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_object____object___to_py *__pyx_freelist___pyx_scope_struct____Pyx_CFunc_object____object___to_py[8];
-static int __pyx_freecount___pyx_scope_struct____Pyx_CFunc_object____object___to_py = 0;
+static struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_14___pyx_f_6spavro_11fast_binary_create_promotions_for_union *__pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_14___pyx_f_6spavro_11fast_binary_create_promotions_for_union[8];
+static int __pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_14___pyx_f_6spavro_11fast_binary_create_promotions_for_union = 0;
 
-static PyObject *__pyx_tp_new___pyx_scope_struct____Pyx_CFunc_object____object___to_py(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+static PyObject *__pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_14___pyx_f_6spavro_11fast_binary_create_promotions_for_union(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
   PyObject *o;
-  if (CYTHON_COMPILING_IN_CPYTHON && likely((__pyx_freecount___pyx_scope_struct____Pyx_CFunc_object____object___to_py > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_object____object___to_py)))) {
-    o = (PyObject*)__pyx_freelist___pyx_scope_struct____Pyx_CFunc_object____object___to_py[--__pyx_freecount___pyx_scope_struct____Pyx_CFunc_object____object___to_py];
-    memset(o, 0, sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_object____object___to_py));
+  if (CYTHON_COMPILING_IN_CPYTHON && likely((__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_14___pyx_f_6spavro_11fast_binary_create_promotions_for_union > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_14___pyx_f_6spavro_11fast_binary_create_promotions_for_union)))) {
+    o = (PyObject*)__pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_14___pyx_f_6spavro_11fast_binary_create_promotions_for_union[--__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_14___pyx_f_6spavro_11fast_binary_create_promotions_for_union];
+    memset(o, 0, sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_14___pyx_f_6spavro_11fast_binary_create_promotions_for_union));
     (void) PyObject_INIT(o, t);
+    PyObject_GC_Track(o);
   } else {
     o = (*t->tp_alloc)(t, 0);
     if (unlikely(!o)) return 0;
@@ -26335,21 +24625,47 @@ static PyObject *__pyx_tp_new___pyx_scope_struct____Pyx_CFunc_object____object__
   return o;
 }
 
-static void __pyx_tp_dealloc___pyx_scope_struct____Pyx_CFunc_object____object___to_py(PyObject *o) {
-  if (CYTHON_COMPILING_IN_CPYTHON && ((__pyx_freecount___pyx_scope_struct____Pyx_CFunc_object____object___to_py < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_object____object___to_py)))) {
-    __pyx_freelist___pyx_scope_struct____Pyx_CFunc_object____object___to_py[__pyx_freecount___pyx_scope_struct____Pyx_CFunc_object____object___to_py++] = ((struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_object____object___to_py *)o);
+static void __pyx_tp_dealloc_6spavro_11fast_binary___pyx_scope_struct_14___pyx_f_6spavro_11fast_binary_create_promotions_for_union(PyObject *o) {
+  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_14___pyx_f_6spavro_11fast_binary_create_promotions_for_union *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_14___pyx_f_6spavro_11fast_binary_create_promotions_for_union *)o;
+  PyObject_GC_UnTrack(o);
+  Py_CLEAR(p->__pyx_v_writer_lookup_dict);
+  if (CYTHON_COMPILING_IN_CPYTHON && ((__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_14___pyx_f_6spavro_11fast_binary_create_promotions_for_union < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_14___pyx_f_6spavro_11fast_binary_create_promotions_for_union)))) {
+    __pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_14___pyx_f_6spavro_11fast_binary_create_promotions_for_union[__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_14___pyx_f_6spavro_11fast_binary_create_promotions_for_union++] = ((struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_14___pyx_f_6spavro_11fast_binary_create_promotions_for_union *)o);
   } else {
     (*Py_TYPE(o)->tp_free)(o);
   }
 }
 
-static PyTypeObject __pyx_scope_struct____Pyx_CFunc_object____object___to_py = {
+static int __pyx_tp_traverse_6spavro_11fast_binary___pyx_scope_struct_14___pyx_f_6spavro_11fast_binary_create_promotions_for_union(PyObject *o, visitproc v, void *a) {
+  int e;
+  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_14___pyx_f_6spavro_11fast_binary_create_promotions_for_union *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_14___pyx_f_6spavro_11fast_binary_create_promotions_for_union *)o;
+  if (p->__pyx_v_writer_lookup_dict) {
+    e = (*v)(p->__pyx_v_writer_lookup_dict, a); if (e) return e;
+  }
+  return 0;
+}
+
+static int __pyx_tp_clear_6spavro_11fast_binary___pyx_scope_struct_14___pyx_f_6spavro_11fast_binary_create_promotions_for_union(PyObject *o) {
+  PyObject* tmp;
+  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_14___pyx_f_6spavro_11fast_binary_create_promotions_for_union *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_14___pyx_f_6spavro_11fast_binary_create_promotions_for_union *)o;
+  tmp = ((PyObject*)p->__pyx_v_writer_lookup_dict);
+  p->__pyx_v_writer_lookup_dict = ((PyObject*)Py_None); Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  return 0;
+}
+
+static PyTypeObject __pyx_type_6spavro_11fast_binary___pyx_scope_struct_14___pyx_f_6spavro_11fast_binary_create_promotions_for_union = {
   PyVarObject_HEAD_INIT(0, 0)
-  "spavro.fast_binary.__pyx_scope_struct____Pyx_CFunc_object____object___to_py", /*tp_name*/
-  sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_object____object___to_py), /*tp_basicsize*/
+  "spavro.fast_binary.__pyx_scope_struct_14___pyx_f_6spavro_11fast_binary_create_promotions_for_union", /*tp_name*/
+  sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_14___pyx_f_6spavro_11fast_binary_create_promotions_for_union), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc___pyx_scope_struct____Pyx_CFunc_object____object___to_py, /*tp_dealloc*/
+  __pyx_tp_dealloc_6spavro_11fast_binary___pyx_scope_struct_14___pyx_f_6spavro_11fast_binary_create_promotions_for_union, /*tp_dealloc*/
+  #if PY_VERSION_HEX < 0x030800b4
   0, /*tp_print*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4
+  0, /*tp_vectorcall_offset*/
+  #endif
   0, /*tp_getattr*/
   0, /*tp_setattr*/
   #if PY_MAJOR_VERSION < 3
@@ -26368,10 +24684,10 @@ static PyTypeObject __pyx_scope_struct____Pyx_CFunc_object____object___to_py = {
   0, /*tp_getattro*/
   0, /*tp_setattro*/
   0, /*tp_as_buffer*/
-  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER, /*tp_flags*/
+  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
   0, /*tp_doc*/
-  0, /*tp_traverse*/
-  0, /*tp_clear*/
+  __pyx_tp_traverse_6spavro_11fast_binary___pyx_scope_struct_14___pyx_f_6spavro_11fast_binary_create_promotions_for_union, /*tp_traverse*/
+  __pyx_tp_clear_6spavro_11fast_binary___pyx_scope_struct_14___pyx_f_6spavro_11fast_binary_create_promotions_for_union, /*tp_clear*/
   0, /*tp_richcompare*/
   0, /*tp_weaklistoffset*/
   0, /*tp_iter*/
@@ -26386,7 +24702,7 @@ static PyTypeObject __pyx_scope_struct____Pyx_CFunc_object____object___to_py = {
   0, /*tp_dictoffset*/
   0, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new___pyx_scope_struct____Pyx_CFunc_object____object___to_py, /*tp_new*/
+  __pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_14___pyx_f_6spavro_11fast_binary_create_promotions_for_union, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -26399,17 +24715,27 @@ static PyTypeObject __pyx_scope_struct____Pyx_CFunc_object____object___to_py = {
   #if PY_VERSION_HEX >= 0x030400a1
   0, /*tp_finalize*/
   #endif
+  #if PY_VERSION_HEX >= 0x030800b1 && (!CYTHON_COMPILING_IN_PYPY || PYPY_VERSION_NUM >= 0x07030800)
+  0, /*tp_vectorcall*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4 && PY_VERSION_HEX < 0x03090000
+  0, /*tp_print*/
+  #endif
+  #if CYTHON_COMPILING_IN_PYPY && PY_VERSION_HEX >= 0x03090000
+  0, /*tp_pypy_flags*/
+  #endif
 };
 
-static struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_unicode____object___to_py *__pyx_freelist___pyx_scope_struct____Pyx_CFunc_unicode____object___to_py[8];
-static int __pyx_freecount___pyx_scope_struct____Pyx_CFunc_unicode____object___to_py = 0;
+static struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_15_make_union_writer *__pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_15_make_union_writer[8];
+static int __pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_15_make_union_writer = 0;
 
-static PyObject *__pyx_tp_new___pyx_scope_struct____Pyx_CFunc_unicode____object___to_py(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+static PyObject *__pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_15_make_union_writer(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
   PyObject *o;
-  if (CYTHON_COMPILING_IN_CPYTHON && likely((__pyx_freecount___pyx_scope_struct____Pyx_CFunc_unicode____object___to_py > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_unicode____object___to_py)))) {
-    o = (PyObject*)__pyx_freelist___pyx_scope_struct____Pyx_CFunc_unicode____object___to_py[--__pyx_freecount___pyx_scope_struct____Pyx_CFunc_unicode____object___to_py];
-    memset(o, 0, sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_unicode____object___to_py));
+  if (CYTHON_COMPILING_IN_CPYTHON && likely((__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_15_make_union_writer > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_15_make_union_writer)))) {
+    o = (PyObject*)__pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_15_make_union_writer[--__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_15_make_union_writer];
+    memset(o, 0, sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_15_make_union_writer));
     (void) PyObject_INIT(o, t);
+    PyObject_GC_Track(o);
   } else {
     o = (*t->tp_alloc)(t, 0);
     if (unlikely(!o)) return 0;
@@ -26417,21 +24743,54 @@ static PyObject *__pyx_tp_new___pyx_scope_struct____Pyx_CFunc_unicode____object_
   return o;
 }
 
-static void __pyx_tp_dealloc___pyx_scope_struct____Pyx_CFunc_unicode____object___to_py(PyObject *o) {
-  if (CYTHON_COMPILING_IN_CPYTHON && ((__pyx_freecount___pyx_scope_struct____Pyx_CFunc_unicode____object___to_py < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_unicode____object___to_py)))) {
-    __pyx_freelist___pyx_scope_struct____Pyx_CFunc_unicode____object___to_py[__pyx_freecount___pyx_scope_struct____Pyx_CFunc_unicode____object___to_py++] = ((struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_unicode____object___to_py *)o);
+static void __pyx_tp_dealloc_6spavro_11fast_binary___pyx_scope_struct_15_make_union_writer(PyObject *o) {
+  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_15_make_union_writer *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_15_make_union_writer *)o;
+  PyObject_GC_UnTrack(o);
+  Py_CLEAR(p->__pyx_v_union_schema);
+  Py_CLEAR(p->__pyx_v_writer_lookup_dict);
+  if (CYTHON_COMPILING_IN_CPYTHON && ((__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_15_make_union_writer < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_15_make_union_writer)))) {
+    __pyx_freelist_6spavro_11fast_binary___pyx_scope_struct_15_make_union_writer[__pyx_freecount_6spavro_11fast_binary___pyx_scope_struct_15_make_union_writer++] = ((struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_15_make_union_writer *)o);
   } else {
     (*Py_TYPE(o)->tp_free)(o);
   }
 }
 
-static PyTypeObject __pyx_scope_struct____Pyx_CFunc_unicode____object___to_py = {
+static int __pyx_tp_traverse_6spavro_11fast_binary___pyx_scope_struct_15_make_union_writer(PyObject *o, visitproc v, void *a) {
+  int e;
+  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_15_make_union_writer *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_15_make_union_writer *)o;
+  if (p->__pyx_v_union_schema) {
+    e = (*v)(p->__pyx_v_union_schema, a); if (e) return e;
+  }
+  if (p->__pyx_v_writer_lookup_dict) {
+    e = (*v)(p->__pyx_v_writer_lookup_dict, a); if (e) return e;
+  }
+  return 0;
+}
+
+static int __pyx_tp_clear_6spavro_11fast_binary___pyx_scope_struct_15_make_union_writer(PyObject *o) {
+  PyObject* tmp;
+  struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_15_make_union_writer *p = (struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_15_make_union_writer *)o;
+  tmp = ((PyObject*)p->__pyx_v_union_schema);
+  p->__pyx_v_union_schema = Py_None; Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  tmp = ((PyObject*)p->__pyx_v_writer_lookup_dict);
+  p->__pyx_v_writer_lookup_dict = ((PyObject*)Py_None); Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  return 0;
+}
+
+static PyTypeObject __pyx_type_6spavro_11fast_binary___pyx_scope_struct_15_make_union_writer = {
   PyVarObject_HEAD_INIT(0, 0)
-  "spavro.fast_binary.__pyx_scope_struct____Pyx_CFunc_unicode____object___to_py", /*tp_name*/
-  sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_unicode____object___to_py), /*tp_basicsize*/
+  "spavro.fast_binary.__pyx_scope_struct_15_make_union_writer", /*tp_name*/
+  sizeof(struct __pyx_obj_6spavro_11fast_binary___pyx_scope_struct_15_make_union_writer), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc___pyx_scope_struct____Pyx_CFunc_unicode____object___to_py, /*tp_dealloc*/
+  __pyx_tp_dealloc_6spavro_11fast_binary___pyx_scope_struct_15_make_union_writer, /*tp_dealloc*/
+  #if PY_VERSION_HEX < 0x030800b4
   0, /*tp_print*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4
+  0, /*tp_vectorcall_offset*/
+  #endif
   0, /*tp_getattr*/
   0, /*tp_setattr*/
   #if PY_MAJOR_VERSION < 3
@@ -26450,10 +24809,10 @@ static PyTypeObject __pyx_scope_struct____Pyx_CFunc_unicode____object___to_py =
   0, /*tp_getattro*/
   0, /*tp_setattro*/
   0, /*tp_as_buffer*/
-  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER, /*tp_flags*/
+  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
   0, /*tp_doc*/
-  0, /*tp_traverse*/
-  0, /*tp_clear*/
+  __pyx_tp_traverse_6spavro_11fast_binary___pyx_scope_struct_15_make_union_writer, /*tp_traverse*/
+  __pyx_tp_clear_6spavro_11fast_binary___pyx_scope_struct_15_make_union_writer, /*tp_clear*/
   0, /*tp_richcompare*/
   0, /*tp_weaklistoffset*/
   0, /*tp_iter*/
@@ -26468,7 +24827,7 @@ static PyTypeObject __pyx_scope_struct____Pyx_CFunc_unicode____object___to_py =
   0, /*tp_dictoffset*/
   0, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new___pyx_scope_struct____Pyx_CFunc_unicode____object___to_py, /*tp_new*/
+  __pyx_tp_new_6spavro_11fast_binary___pyx_scope_struct_15_make_union_writer, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -26481,16 +24840,25 @@ static PyTypeObject __pyx_scope_struct____Pyx_CFunc_unicode____object___to_py =
   #if PY_VERSION_HEX >= 0x030400a1
   0, /*tp_finalize*/
   #endif
+  #if PY_VERSION_HEX >= 0x030800b1 && (!CYTHON_COMPILING_IN_PYPY || PYPY_VERSION_NUM >= 0x07030800)
+  0, /*tp_vectorcall*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4 && PY_VERSION_HEX < 0x03090000
+  0, /*tp_print*/
+  #endif
+  #if CYTHON_COMPILING_IN_PYPY && PY_VERSION_HEX >= 0x03090000
+  0, /*tp_pypy_flags*/
+  #endif
 };
 
-static struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_bint____object___to_py *__pyx_freelist___pyx_scope_struct____Pyx_CFunc_bint____object___to_py[8];
-static int __pyx_freecount___pyx_scope_struct____Pyx_CFunc_bint____object___to_py = 0;
+static struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_void____object____long__long___to_py *__pyx_freelist___pyx_scope_struct____Pyx_CFunc_void____object____long__long___to_py[8];
+static int __pyx_freecount___pyx_scope_struct____Pyx_CFunc_void____object____long__long___to_py = 0;
 
-static PyObject *__pyx_tp_new___pyx_scope_struct____Pyx_CFunc_bint____object___to_py(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+static PyObject *__pyx_tp_new___pyx_scope_struct____Pyx_CFunc_void____object____long__long___to_py(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
   PyObject *o;
-  if (CYTHON_COMPILING_IN_CPYTHON && likely((__pyx_freecount___pyx_scope_struct____Pyx_CFunc_bint____object___to_py > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_bint____object___to_py)))) {
-    o = (PyObject*)__pyx_freelist___pyx_scope_struct____Pyx_CFunc_bint____object___to_py[--__pyx_freecount___pyx_scope_struct____Pyx_CFunc_bint____object___to_py];
-    memset(o, 0, sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_bint____object___to_py));
+  if (CYTHON_COMPILING_IN_CPYTHON && likely((__pyx_freecount___pyx_scope_struct____Pyx_CFunc_void____object____long__long___to_py > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_void____object____long__long___to_py)))) {
+    o = (PyObject*)__pyx_freelist___pyx_scope_struct____Pyx_CFunc_void____object____long__long___to_py[--__pyx_freecount___pyx_scope_struct____Pyx_CFunc_void____object____long__long___to_py];
+    memset(o, 0, sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_void____object____long__long___to_py));
     (void) PyObject_INIT(o, t);
   } else {
     o = (*t->tp_alloc)(t, 0);
@@ -26499,21 +24867,26 @@ static PyObject *__pyx_tp_new___pyx_scope_struct____Pyx_CFunc_bint____object___t
   return o;
 }
 
-static void __pyx_tp_dealloc___pyx_scope_struct____Pyx_CFunc_bint____object___to_py(PyObject *o) {
-  if (CYTHON_COMPILING_IN_CPYTHON && ((__pyx_freecount___pyx_scope_struct____Pyx_CFunc_bint____object___to_py < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_bint____object___to_py)))) {
-    __pyx_freelist___pyx_scope_struct____Pyx_CFunc_bint____object___to_py[__pyx_freecount___pyx_scope_struct____Pyx_CFunc_bint____object___to_py++] = ((struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_bint____object___to_py *)o);
+static void __pyx_tp_dealloc___pyx_scope_struct____Pyx_CFunc_void____object____long__long___to_py(PyObject *o) {
+  if (CYTHON_COMPILING_IN_CPYTHON && ((__pyx_freecount___pyx_scope_struct____Pyx_CFunc_void____object____long__long___to_py < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_void____object____long__long___to_py)))) {
+    __pyx_freelist___pyx_scope_struct____Pyx_CFunc_void____object____long__long___to_py[__pyx_freecount___pyx_scope_struct____Pyx_CFunc_void____object____long__long___to_py++] = ((struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_void____object____long__long___to_py *)o);
   } else {
     (*Py_TYPE(o)->tp_free)(o);
   }
 }
 
-static PyTypeObject __pyx_scope_struct____Pyx_CFunc_bint____object___to_py = {
+static PyTypeObject __pyx_scope_struct____Pyx_CFunc_void____object____long__long___to_py = {
   PyVarObject_HEAD_INIT(0, 0)
-  "spavro.fast_binary.__pyx_scope_struct____Pyx_CFunc_bint____object___to_py", /*tp_name*/
-  sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_bint____object___to_py), /*tp_basicsize*/
+  "spavro.fast_binary.__pyx_scope_struct____Pyx_CFunc_void____object____long__long___to_py", /*tp_name*/
+  sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_void____object____long__long___to_py), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc___pyx_scope_struct____Pyx_CFunc_bint____object___to_py, /*tp_dealloc*/
+  __pyx_tp_dealloc___pyx_scope_struct____Pyx_CFunc_void____object____long__long___to_py, /*tp_dealloc*/
+  #if PY_VERSION_HEX < 0x030800b4
   0, /*tp_print*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4
+  0, /*tp_vectorcall_offset*/
+  #endif
   0, /*tp_getattr*/
   0, /*tp_setattr*/
   #if PY_MAJOR_VERSION < 3
@@ -26550,7 +24923,7 @@ static PyTypeObject __pyx_scope_struct____Pyx_CFunc_bint____object___to_py = {
   0, /*tp_dictoffset*/
   0, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new___pyx_scope_struct____Pyx_CFunc_bint____object___to_py, /*tp_new*/
+  __pyx_tp_new___pyx_scope_struct____Pyx_CFunc_void____object____long__long___to_py, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -26563,16 +24936,25 @@ static PyTypeObject __pyx_scope_struct____Pyx_CFunc_bint____object___to_py = {
   #if PY_VERSION_HEX >= 0x030400a1
   0, /*tp_finalize*/
   #endif
+  #if PY_VERSION_HEX >= 0x030800b1 && (!CYTHON_COMPILING_IN_PYPY || PYPY_VERSION_NUM >= 0x07030800)
+  0, /*tp_vectorcall*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4 && PY_VERSION_HEX < 0x03090000
+  0, /*tp_print*/
+  #endif
+  #if CYTHON_COMPILING_IN_PYPY && PY_VERSION_HEX >= 0x03090000
+  0, /*tp_pypy_flags*/
+  #endif
 };
 
-static struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_double____object___to_py *__pyx_freelist___pyx_scope_struct____Pyx_CFunc_double____object___to_py[8];
-static int __pyx_freecount___pyx_scope_struct____Pyx_CFunc_double____object___to_py = 0;
+static struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_object____object___to_py *__pyx_freelist___pyx_scope_struct____Pyx_CFunc_object____object___to_py[8];
+static int __pyx_freecount___pyx_scope_struct____Pyx_CFunc_object____object___to_py = 0;
 
-static PyObject *__pyx_tp_new___pyx_scope_struct____Pyx_CFunc_double____object___to_py(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+static PyObject *__pyx_tp_new___pyx_scope_struct____Pyx_CFunc_object____object___to_py(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
   PyObject *o;
-  if (CYTHON_COMPILING_IN_CPYTHON && likely((__pyx_freecount___pyx_scope_struct____Pyx_CFunc_double____object___to_py > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_double____object___to_py)))) {
-    o = (PyObject*)__pyx_freelist___pyx_scope_struct____Pyx_CFunc_double____object___to_py[--__pyx_freecount___pyx_scope_struct____Pyx_CFunc_double____object___to_py];
-    memset(o, 0, sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_double____object___to_py));
+  if (CYTHON_COMPILING_IN_CPYTHON && likely((__pyx_freecount___pyx_scope_struct____Pyx_CFunc_object____object___to_py > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_object____object___to_py)))) {
+    o = (PyObject*)__pyx_freelist___pyx_scope_struct____Pyx_CFunc_object____object___to_py[--__pyx_freecount___pyx_scope_struct____Pyx_CFunc_object____object___to_py];
+    memset(o, 0, sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_object____object___to_py));
     (void) PyObject_INIT(o, t);
   } else {
     o = (*t->tp_alloc)(t, 0);
@@ -26581,21 +24963,26 @@ static PyObject *__pyx_tp_new___pyx_scope_struct____Pyx_CFunc_double____object__
   return o;
 }
 
-static void __pyx_tp_dealloc___pyx_scope_struct____Pyx_CFunc_double____object___to_py(PyObject *o) {
-  if (CYTHON_COMPILING_IN_CPYTHON && ((__pyx_freecount___pyx_scope_struct____Pyx_CFunc_double____object___to_py < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_double____object___to_py)))) {
-    __pyx_freelist___pyx_scope_struct____Pyx_CFunc_double____object___to_py[__pyx_freecount___pyx_scope_struct____Pyx_CFunc_double____object___to_py++] = ((struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_double____object___to_py *)o);
+static void __pyx_tp_dealloc___pyx_scope_struct____Pyx_CFunc_object____object___to_py(PyObject *o) {
+  if (CYTHON_COMPILING_IN_CPYTHON && ((__pyx_freecount___pyx_scope_struct____Pyx_CFunc_object____object___to_py < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_object____object___to_py)))) {
+    __pyx_freelist___pyx_scope_struct____Pyx_CFunc_object____object___to_py[__pyx_freecount___pyx_scope_struct____Pyx_CFunc_object____object___to_py++] = ((struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_object____object___to_py *)o);
   } else {
     (*Py_TYPE(o)->tp_free)(o);
   }
 }
 
-static PyTypeObject __pyx_scope_struct____Pyx_CFunc_double____object___to_py = {
+static PyTypeObject __pyx_scope_struct____Pyx_CFunc_object____object___to_py = {
   PyVarObject_HEAD_INIT(0, 0)
-  "spavro.fast_binary.__pyx_scope_struct____Pyx_CFunc_double____object___to_py", /*tp_name*/
-  sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_double____object___to_py), /*tp_basicsize*/
+  "spavro.fast_binary.__pyx_scope_struct____Pyx_CFunc_object____object___to_py", /*tp_name*/
+  sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_object____object___to_py), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc___pyx_scope_struct____Pyx_CFunc_double____object___to_py, /*tp_dealloc*/
+  __pyx_tp_dealloc___pyx_scope_struct____Pyx_CFunc_object____object___to_py, /*tp_dealloc*/
+  #if PY_VERSION_HEX < 0x030800b4
   0, /*tp_print*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4
+  0, /*tp_vectorcall_offset*/
+  #endif
   0, /*tp_getattr*/
   0, /*tp_setattr*/
   #if PY_MAJOR_VERSION < 3
@@ -26632,7 +25019,7 @@ static PyTypeObject __pyx_scope_struct____Pyx_CFunc_double____object___to_py = {
   0, /*tp_dictoffset*/
   0, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new___pyx_scope_struct____Pyx_CFunc_double____object___to_py, /*tp_new*/
+  __pyx_tp_new___pyx_scope_struct____Pyx_CFunc_object____object___to_py, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -26645,16 +25032,25 @@ static PyTypeObject __pyx_scope_struct____Pyx_CFunc_double____object___to_py = {
   #if PY_VERSION_HEX >= 0x030400a1
   0, /*tp_finalize*/
   #endif
+  #if PY_VERSION_HEX >= 0x030800b1 && (!CYTHON_COMPILING_IN_PYPY || PYPY_VERSION_NUM >= 0x07030800)
+  0, /*tp_vectorcall*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4 && PY_VERSION_HEX < 0x03090000
+  0, /*tp_print*/
+  #endif
+  #if CYTHON_COMPILING_IN_PYPY && PY_VERSION_HEX >= 0x03090000
+  0, /*tp_pypy_flags*/
+  #endif
 };
 
-static struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_long__long____object___to_py *__pyx_freelist___pyx_scope_struct____Pyx_CFunc_long__long____object___to_py[8];
-static int __pyx_freecount___pyx_scope_struct____Pyx_CFunc_long__long____object___to_py = 0;
+static struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_unicode____object___to_py *__pyx_freelist___pyx_scope_struct____Pyx_CFunc_unicode____object___to_py[8];
+static int __pyx_freecount___pyx_scope_struct____Pyx_CFunc_unicode____object___to_py = 0;
 
-static PyObject *__pyx_tp_new___pyx_scope_struct____Pyx_CFunc_long__long____object___to_py(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+static PyObject *__pyx_tp_new___pyx_scope_struct____Pyx_CFunc_unicode____object___to_py(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
   PyObject *o;
-  if (CYTHON_COMPILING_IN_CPYTHON && likely((__pyx_freecount___pyx_scope_struct____Pyx_CFunc_long__long____object___to_py > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_long__long____object___to_py)))) {
-    o = (PyObject*)__pyx_freelist___pyx_scope_struct____Pyx_CFunc_long__long____object___to_py[--__pyx_freecount___pyx_scope_struct____Pyx_CFunc_long__long____object___to_py];
-    memset(o, 0, sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_long__long____object___to_py));
+  if (CYTHON_COMPILING_IN_CPYTHON && likely((__pyx_freecount___pyx_scope_struct____Pyx_CFunc_unicode____object___to_py > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_unicode____object___to_py)))) {
+    o = (PyObject*)__pyx_freelist___pyx_scope_struct____Pyx_CFunc_unicode____object___to_py[--__pyx_freecount___pyx_scope_struct____Pyx_CFunc_unicode____object___to_py];
+    memset(o, 0, sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_unicode____object___to_py));
     (void) PyObject_INIT(o, t);
   } else {
     o = (*t->tp_alloc)(t, 0);
@@ -26663,21 +25059,26 @@ static PyObject *__pyx_tp_new___pyx_scope_struct____Pyx_CFunc_long__long____obje
   return o;
 }
 
-static void __pyx_tp_dealloc___pyx_scope_struct____Pyx_CFunc_long__long____object___to_py(PyObject *o) {
-  if (CYTHON_COMPILING_IN_CPYTHON && ((__pyx_freecount___pyx_scope_struct____Pyx_CFunc_long__long____object___to_py < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_long__long____object___to_py)))) {
-    __pyx_freelist___pyx_scope_struct____Pyx_CFunc_long__long____object___to_py[__pyx_freecount___pyx_scope_struct____Pyx_CFunc_long__long____object___to_py++] = ((struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_long__long____object___to_py *)o);
+static void __pyx_tp_dealloc___pyx_scope_struct____Pyx_CFunc_unicode____object___to_py(PyObject *o) {
+  if (CYTHON_COMPILING_IN_CPYTHON && ((__pyx_freecount___pyx_scope_struct____Pyx_CFunc_unicode____object___to_py < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_unicode____object___to_py)))) {
+    __pyx_freelist___pyx_scope_struct____Pyx_CFunc_unicode____object___to_py[__pyx_freecount___pyx_scope_struct____Pyx_CFunc_unicode____object___to_py++] = ((struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_unicode____object___to_py *)o);
   } else {
     (*Py_TYPE(o)->tp_free)(o);
   }
 }
 
-static PyTypeObject __pyx_scope_struct____Pyx_CFunc_long__long____object___to_py = {
+static PyTypeObject __pyx_scope_struct____Pyx_CFunc_unicode____object___to_py = {
   PyVarObject_HEAD_INIT(0, 0)
-  "spavro.fast_binary.__pyx_scope_struct____Pyx_CFunc_long__long____object___to_py", /*tp_name*/
-  sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_long__long____object___to_py), /*tp_basicsize*/
+  "spavro.fast_binary.__pyx_scope_struct____Pyx_CFunc_unicode____object___to_py", /*tp_name*/
+  sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_unicode____object___to_py), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc___pyx_scope_struct____Pyx_CFunc_long__long____object___to_py, /*tp_dealloc*/
+  __pyx_tp_dealloc___pyx_scope_struct____Pyx_CFunc_unicode____object___to_py, /*tp_dealloc*/
+  #if PY_VERSION_HEX < 0x030800b4
   0, /*tp_print*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4
+  0, /*tp_vectorcall_offset*/
+  #endif
   0, /*tp_getattr*/
   0, /*tp_setattr*/
   #if PY_MAJOR_VERSION < 3
@@ -26714,7 +25115,7 @@ static PyTypeObject __pyx_scope_struct____Pyx_CFunc_long__long____object___to_py
   0, /*tp_dictoffset*/
   0, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new___pyx_scope_struct____Pyx_CFunc_long__long____object___to_py, /*tp_new*/
+  __pyx_tp_new___pyx_scope_struct____Pyx_CFunc_unicode____object___to_py, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -26727,16 +25128,25 @@ static PyTypeObject __pyx_scope_struct____Pyx_CFunc_long__long____object___to_py
   #if PY_VERSION_HEX >= 0x030400a1
   0, /*tp_finalize*/
   #endif
+  #if PY_VERSION_HEX >= 0x030800b1 && (!CYTHON_COMPILING_IN_PYPY || PYPY_VERSION_NUM >= 0x07030800)
+  0, /*tp_vectorcall*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4 && PY_VERSION_HEX < 0x03090000
+  0, /*tp_print*/
+  #endif
+  #if CYTHON_COMPILING_IN_PYPY && PY_VERSION_HEX >= 0x03090000
+  0, /*tp_pypy_flags*/
+  #endif
 };
 
-static struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_bytes____object___to_py *__pyx_freelist___pyx_scope_struct____Pyx_CFunc_bytes____object___to_py[8];
-static int __pyx_freecount___pyx_scope_struct____Pyx_CFunc_bytes____object___to_py = 0;
+static struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_bint____object___to_py *__pyx_freelist___pyx_scope_struct____Pyx_CFunc_bint____object___to_py[8];
+static int __pyx_freecount___pyx_scope_struct____Pyx_CFunc_bint____object___to_py = 0;
 
-static PyObject *__pyx_tp_new___pyx_scope_struct____Pyx_CFunc_bytes____object___to_py(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+static PyObject *__pyx_tp_new___pyx_scope_struct____Pyx_CFunc_bint____object___to_py(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
   PyObject *o;
-  if (CYTHON_COMPILING_IN_CPYTHON && likely((__pyx_freecount___pyx_scope_struct____Pyx_CFunc_bytes____object___to_py > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_bytes____object___to_py)))) {
-    o = (PyObject*)__pyx_freelist___pyx_scope_struct____Pyx_CFunc_bytes____object___to_py[--__pyx_freecount___pyx_scope_struct____Pyx_CFunc_bytes____object___to_py];
-    memset(o, 0, sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_bytes____object___to_py));
+  if (CYTHON_COMPILING_IN_CPYTHON && likely((__pyx_freecount___pyx_scope_struct____Pyx_CFunc_bint____object___to_py > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_bint____object___to_py)))) {
+    o = (PyObject*)__pyx_freelist___pyx_scope_struct____Pyx_CFunc_bint____object___to_py[--__pyx_freecount___pyx_scope_struct____Pyx_CFunc_bint____object___to_py];
+    memset(o, 0, sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_bint____object___to_py));
     (void) PyObject_INIT(o, t);
   } else {
     o = (*t->tp_alloc)(t, 0);
@@ -26745,21 +25155,26 @@ static PyObject *__pyx_tp_new___pyx_scope_struct____Pyx_CFunc_bytes____object___
   return o;
 }
 
-static void __pyx_tp_dealloc___pyx_scope_struct____Pyx_CFunc_bytes____object___to_py(PyObject *o) {
-  if (CYTHON_COMPILING_IN_CPYTHON && ((__pyx_freecount___pyx_scope_struct____Pyx_CFunc_bytes____object___to_py < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_bytes____object___to_py)))) {
-    __pyx_freelist___pyx_scope_struct____Pyx_CFunc_bytes____object___to_py[__pyx_freecount___pyx_scope_struct____Pyx_CFunc_bytes____object___to_py++] = ((struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_bytes____object___to_py *)o);
+static void __pyx_tp_dealloc___pyx_scope_struct____Pyx_CFunc_bint____object___to_py(PyObject *o) {
+  if (CYTHON_COMPILING_IN_CPYTHON && ((__pyx_freecount___pyx_scope_struct____Pyx_CFunc_bint____object___to_py < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_bint____object___to_py)))) {
+    __pyx_freelist___pyx_scope_struct____Pyx_CFunc_bint____object___to_py[__pyx_freecount___pyx_scope_struct____Pyx_CFunc_bint____object___to_py++] = ((struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_bint____object___to_py *)o);
   } else {
     (*Py_TYPE(o)->tp_free)(o);
   }
 }
 
-static PyTypeObject __pyx_scope_struct____Pyx_CFunc_bytes____object___to_py = {
+static PyTypeObject __pyx_scope_struct____Pyx_CFunc_bint____object___to_py = {
   PyVarObject_HEAD_INIT(0, 0)
-  "spavro.fast_binary.__pyx_scope_struct____Pyx_CFunc_bytes____object___to_py", /*tp_name*/
-  sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_bytes____object___to_py), /*tp_basicsize*/
+  "spavro.fast_binary.__pyx_scope_struct____Pyx_CFunc_bint____object___to_py", /*tp_name*/
+  sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_bint____object___to_py), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc___pyx_scope_struct____Pyx_CFunc_bytes____object___to_py, /*tp_dealloc*/
+  __pyx_tp_dealloc___pyx_scope_struct____Pyx_CFunc_bint____object___to_py, /*tp_dealloc*/
+  #if PY_VERSION_HEX < 0x030800b4
   0, /*tp_print*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4
+  0, /*tp_vectorcall_offset*/
+  #endif
   0, /*tp_getattr*/
   0, /*tp_setattr*/
   #if PY_MAJOR_VERSION < 3
@@ -26796,7 +25211,7 @@ static PyTypeObject __pyx_scope_struct____Pyx_CFunc_bytes____object___to_py = {
   0, /*tp_dictoffset*/
   0, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new___pyx_scope_struct____Pyx_CFunc_bytes____object___to_py, /*tp_new*/
+  __pyx_tp_new___pyx_scope_struct____Pyx_CFunc_bint____object___to_py, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -26809,16 +25224,25 @@ static PyTypeObject __pyx_scope_struct____Pyx_CFunc_bytes____object___to_py = {
   #if PY_VERSION_HEX >= 0x030400a1
   0, /*tp_finalize*/
   #endif
+  #if PY_VERSION_HEX >= 0x030800b1 && (!CYTHON_COMPILING_IN_PYPY || PYPY_VERSION_NUM >= 0x07030800)
+  0, /*tp_vectorcall*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4 && PY_VERSION_HEX < 0x03090000
+  0, /*tp_print*/
+  #endif
+  #if CYTHON_COMPILING_IN_PYPY && PY_VERSION_HEX >= 0x03090000
+  0, /*tp_pypy_flags*/
+  #endif
 };
 
-static struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_float____object___to_py *__pyx_freelist___pyx_scope_struct____Pyx_CFunc_float____object___to_py[8];
-static int __pyx_freecount___pyx_scope_struct____Pyx_CFunc_float____object___to_py = 0;
+static struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_double____object___to_py *__pyx_freelist___pyx_scope_struct____Pyx_CFunc_double____object___to_py[8];
+static int __pyx_freecount___pyx_scope_struct____Pyx_CFunc_double____object___to_py = 0;
 
-static PyObject *__pyx_tp_new___pyx_scope_struct____Pyx_CFunc_float____object___to_py(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+static PyObject *__pyx_tp_new___pyx_scope_struct____Pyx_CFunc_double____object___to_py(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
   PyObject *o;
-  if (CYTHON_COMPILING_IN_CPYTHON && likely((__pyx_freecount___pyx_scope_struct____Pyx_CFunc_float____object___to_py > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_float____object___to_py)))) {
-    o = (PyObject*)__pyx_freelist___pyx_scope_struct____Pyx_CFunc_float____object___to_py[--__pyx_freecount___pyx_scope_struct____Pyx_CFunc_float____object___to_py];
-    memset(o, 0, sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_float____object___to_py));
+  if (CYTHON_COMPILING_IN_CPYTHON && likely((__pyx_freecount___pyx_scope_struct____Pyx_CFunc_double____object___to_py > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_double____object___to_py)))) {
+    o = (PyObject*)__pyx_freelist___pyx_scope_struct____Pyx_CFunc_double____object___to_py[--__pyx_freecount___pyx_scope_struct____Pyx_CFunc_double____object___to_py];
+    memset(o, 0, sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_double____object___to_py));
     (void) PyObject_INIT(o, t);
   } else {
     o = (*t->tp_alloc)(t, 0);
@@ -26827,21 +25251,26 @@ static PyObject *__pyx_tp_new___pyx_scope_struct____Pyx_CFunc_float____object___
   return o;
 }
 
-static void __pyx_tp_dealloc___pyx_scope_struct____Pyx_CFunc_float____object___to_py(PyObject *o) {
-  if (CYTHON_COMPILING_IN_CPYTHON && ((__pyx_freecount___pyx_scope_struct____Pyx_CFunc_float____object___to_py < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_float____object___to_py)))) {
-    __pyx_freelist___pyx_scope_struct____Pyx_CFunc_float____object___to_py[__pyx_freecount___pyx_scope_struct____Pyx_CFunc_float____object___to_py++] = ((struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_float____object___to_py *)o);
+static void __pyx_tp_dealloc___pyx_scope_struct____Pyx_CFunc_double____object___to_py(PyObject *o) {
+  if (CYTHON_COMPILING_IN_CPYTHON && ((__pyx_freecount___pyx_scope_struct____Pyx_CFunc_double____object___to_py < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_double____object___to_py)))) {
+    __pyx_freelist___pyx_scope_struct____Pyx_CFunc_double____object___to_py[__pyx_freecount___pyx_scope_struct____Pyx_CFunc_double____object___to_py++] = ((struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_double____object___to_py *)o);
   } else {
     (*Py_TYPE(o)->tp_free)(o);
   }
 }
 
-static PyTypeObject __pyx_scope_struct____Pyx_CFunc_float____object___to_py = {
+static PyTypeObject __pyx_scope_struct____Pyx_CFunc_double____object___to_py = {
   PyVarObject_HEAD_INIT(0, 0)
-  "spavro.fast_binary.__pyx_scope_struct____Pyx_CFunc_float____object___to_py", /*tp_name*/
-  sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_float____object___to_py), /*tp_basicsize*/
+  "spavro.fast_binary.__pyx_scope_struct____Pyx_CFunc_double____object___to_py", /*tp_name*/
+  sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_double____object___to_py), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc___pyx_scope_struct____Pyx_CFunc_float____object___to_py, /*tp_dealloc*/
+  __pyx_tp_dealloc___pyx_scope_struct____Pyx_CFunc_double____object___to_py, /*tp_dealloc*/
+  #if PY_VERSION_HEX < 0x030800b4
   0, /*tp_print*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4
+  0, /*tp_vectorcall_offset*/
+  #endif
   0, /*tp_getattr*/
   0, /*tp_setattr*/
   #if PY_MAJOR_VERSION < 3
@@ -26878,7 +25307,7 @@ static PyTypeObject __pyx_scope_struct____Pyx_CFunc_float____object___to_py = {
   0, /*tp_dictoffset*/
   0, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new___pyx_scope_struct____Pyx_CFunc_float____object___to_py, /*tp_new*/
+  __pyx_tp_new___pyx_scope_struct____Pyx_CFunc_double____object___to_py, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -26891,16 +25320,25 @@ static PyTypeObject __pyx_scope_struct____Pyx_CFunc_float____object___to_py = {
   #if PY_VERSION_HEX >= 0x030400a1
   0, /*tp_finalize*/
   #endif
+  #if PY_VERSION_HEX >= 0x030800b1 && (!CYTHON_COMPILING_IN_PYPY || PYPY_VERSION_NUM >= 0x07030800)
+  0, /*tp_vectorcall*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4 && PY_VERSION_HEX < 0x03090000
+  0, /*tp_print*/
+  #endif
+  #if CYTHON_COMPILING_IN_PYPY && PY_VERSION_HEX >= 0x03090000
+  0, /*tp_pypy_flags*/
+  #endif
 };
 
-static struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_void____object____object___to_py *__pyx_freelist___pyx_scope_struct____Pyx_CFunc_void____object____object___to_py[8];
-static int __pyx_freecount___pyx_scope_struct____Pyx_CFunc_void____object____object___to_py = 0;
+static struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_long__long____object___to_py *__pyx_freelist___pyx_scope_struct____Pyx_CFunc_long__long____object___to_py[8];
+static int __pyx_freecount___pyx_scope_struct____Pyx_CFunc_long__long____object___to_py = 0;
 
-static PyObject *__pyx_tp_new___pyx_scope_struct____Pyx_CFunc_void____object____object___to_py(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+static PyObject *__pyx_tp_new___pyx_scope_struct____Pyx_CFunc_long__long____object___to_py(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
   PyObject *o;
-  if (CYTHON_COMPILING_IN_CPYTHON && likely((__pyx_freecount___pyx_scope_struct____Pyx_CFunc_void____object____object___to_py > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_void____object____object___to_py)))) {
-    o = (PyObject*)__pyx_freelist___pyx_scope_struct____Pyx_CFunc_void____object____object___to_py[--__pyx_freecount___pyx_scope_struct____Pyx_CFunc_void____object____object___to_py];
-    memset(o, 0, sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_void____object____object___to_py));
+  if (CYTHON_COMPILING_IN_CPYTHON && likely((__pyx_freecount___pyx_scope_struct____Pyx_CFunc_long__long____object___to_py > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_long__long____object___to_py)))) {
+    o = (PyObject*)__pyx_freelist___pyx_scope_struct____Pyx_CFunc_long__long____object___to_py[--__pyx_freecount___pyx_scope_struct____Pyx_CFunc_long__long____object___to_py];
+    memset(o, 0, sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_long__long____object___to_py));
     (void) PyObject_INIT(o, t);
   } else {
     o = (*t->tp_alloc)(t, 0);
@@ -26909,21 +25347,26 @@ static PyObject *__pyx_tp_new___pyx_scope_struct____Pyx_CFunc_void____object____
   return o;
 }
 
-static void __pyx_tp_dealloc___pyx_scope_struct____Pyx_CFunc_void____object____object___to_py(PyObject *o) {
-  if (CYTHON_COMPILING_IN_CPYTHON && ((__pyx_freecount___pyx_scope_struct____Pyx_CFunc_void____object____object___to_py < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_void____object____object___to_py)))) {
-    __pyx_freelist___pyx_scope_struct____Pyx_CFunc_void____object____object___to_py[__pyx_freecount___pyx_scope_struct____Pyx_CFunc_void____object____object___to_py++] = ((struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_void____object____object___to_py *)o);
+static void __pyx_tp_dealloc___pyx_scope_struct____Pyx_CFunc_long__long____object___to_py(PyObject *o) {
+  if (CYTHON_COMPILING_IN_CPYTHON && ((__pyx_freecount___pyx_scope_struct____Pyx_CFunc_long__long____object___to_py < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_long__long____object___to_py)))) {
+    __pyx_freelist___pyx_scope_struct____Pyx_CFunc_long__long____object___to_py[__pyx_freecount___pyx_scope_struct____Pyx_CFunc_long__long____object___to_py++] = ((struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_long__long____object___to_py *)o);
   } else {
     (*Py_TYPE(o)->tp_free)(o);
   }
 }
 
-static PyTypeObject __pyx_scope_struct____Pyx_CFunc_void____object____object___to_py = {
+static PyTypeObject __pyx_scope_struct____Pyx_CFunc_long__long____object___to_py = {
   PyVarObject_HEAD_INIT(0, 0)
-  "spavro.fast_binary.__pyx_scope_struct____Pyx_CFunc_void____object____object___to_py", /*tp_name*/
-  sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_void____object____object___to_py), /*tp_basicsize*/
+  "spavro.fast_binary.__pyx_scope_struct____Pyx_CFunc_long__long____object___to_py", /*tp_name*/
+  sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_long__long____object___to_py), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc___pyx_scope_struct____Pyx_CFunc_void____object____object___to_py, /*tp_dealloc*/
+  __pyx_tp_dealloc___pyx_scope_struct____Pyx_CFunc_long__long____object___to_py, /*tp_dealloc*/
+  #if PY_VERSION_HEX < 0x030800b4
   0, /*tp_print*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4
+  0, /*tp_vectorcall_offset*/
+  #endif
   0, /*tp_getattr*/
   0, /*tp_setattr*/
   #if PY_MAJOR_VERSION < 3
@@ -26960,7 +25403,7 @@ static PyTypeObject __pyx_scope_struct____Pyx_CFunc_void____object____object___t
   0, /*tp_dictoffset*/
   0, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new___pyx_scope_struct____Pyx_CFunc_void____object____object___to_py, /*tp_new*/
+  __pyx_tp_new___pyx_scope_struct____Pyx_CFunc_long__long____object___to_py, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -26973,16 +25416,25 @@ static PyTypeObject __pyx_scope_struct____Pyx_CFunc_void____object____object___t
   #if PY_VERSION_HEX >= 0x030400a1
   0, /*tp_finalize*/
   #endif
+  #if PY_VERSION_HEX >= 0x030800b1 && (!CYTHON_COMPILING_IN_PYPY || PYPY_VERSION_NUM >= 0x07030800)
+  0, /*tp_vectorcall*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4 && PY_VERSION_HEX < 0x03090000
+  0, /*tp_print*/
+  #endif
+  #if CYTHON_COMPILING_IN_PYPY && PY_VERSION_HEX >= 0x03090000
+  0, /*tp_pypy_flags*/
+  #endif
 };
 
-static struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_void____object____float___to_py *__pyx_freelist___pyx_scope_struct____Pyx_CFunc_void____object____float___to_py[8];
-static int __pyx_freecount___pyx_scope_struct____Pyx_CFunc_void____object____float___to_py = 0;
+static struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_bytes____object___to_py *__pyx_freelist___pyx_scope_struct____Pyx_CFunc_bytes____object___to_py[8];
+static int __pyx_freecount___pyx_scope_struct____Pyx_CFunc_bytes____object___to_py = 0;
 
-static PyObject *__pyx_tp_new___pyx_scope_struct____Pyx_CFunc_void____object____float___to_py(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+static PyObject *__pyx_tp_new___pyx_scope_struct____Pyx_CFunc_bytes____object___to_py(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
   PyObject *o;
-  if (CYTHON_COMPILING_IN_CPYTHON && likely((__pyx_freecount___pyx_scope_struct____Pyx_CFunc_void____object____float___to_py > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_void____object____float___to_py)))) {
-    o = (PyObject*)__pyx_freelist___pyx_scope_struct____Pyx_CFunc_void____object____float___to_py[--__pyx_freecount___pyx_scope_struct____Pyx_CFunc_void____object____float___to_py];
-    memset(o, 0, sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_void____object____float___to_py));
+  if (CYTHON_COMPILING_IN_CPYTHON && likely((__pyx_freecount___pyx_scope_struct____Pyx_CFunc_bytes____object___to_py > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_bytes____object___to_py)))) {
+    o = (PyObject*)__pyx_freelist___pyx_scope_struct____Pyx_CFunc_bytes____object___to_py[--__pyx_freecount___pyx_scope_struct____Pyx_CFunc_bytes____object___to_py];
+    memset(o, 0, sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_bytes____object___to_py));
     (void) PyObject_INIT(o, t);
   } else {
     o = (*t->tp_alloc)(t, 0);
@@ -26991,21 +25443,26 @@ static PyObject *__pyx_tp_new___pyx_scope_struct____Pyx_CFunc_void____object____
   return o;
 }
 
-static void __pyx_tp_dealloc___pyx_scope_struct____Pyx_CFunc_void____object____float___to_py(PyObject *o) {
-  if (CYTHON_COMPILING_IN_CPYTHON && ((__pyx_freecount___pyx_scope_struct____Pyx_CFunc_void____object____float___to_py < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_void____object____float___to_py)))) {
-    __pyx_freelist___pyx_scope_struct____Pyx_CFunc_void____object____float___to_py[__pyx_freecount___pyx_scope_struct____Pyx_CFunc_void____object____float___to_py++] = ((struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_void____object____float___to_py *)o);
+static void __pyx_tp_dealloc___pyx_scope_struct____Pyx_CFunc_bytes____object___to_py(PyObject *o) {
+  if (CYTHON_COMPILING_IN_CPYTHON && ((__pyx_freecount___pyx_scope_struct____Pyx_CFunc_bytes____object___to_py < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_bytes____object___to_py)))) {
+    __pyx_freelist___pyx_scope_struct____Pyx_CFunc_bytes____object___to_py[__pyx_freecount___pyx_scope_struct____Pyx_CFunc_bytes____object___to_py++] = ((struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_bytes____object___to_py *)o);
   } else {
     (*Py_TYPE(o)->tp_free)(o);
   }
 }
 
-static PyTypeObject __pyx_scope_struct____Pyx_CFunc_void____object____float___to_py = {
+static PyTypeObject __pyx_scope_struct____Pyx_CFunc_bytes____object___to_py = {
   PyVarObject_HEAD_INIT(0, 0)
-  "spavro.fast_binary.__pyx_scope_struct____Pyx_CFunc_void____object____float___to_py", /*tp_name*/
-  sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_void____object____float___to_py), /*tp_basicsize*/
+  "spavro.fast_binary.__pyx_scope_struct____Pyx_CFunc_bytes____object___to_py", /*tp_name*/
+  sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_bytes____object___to_py), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc___pyx_scope_struct____Pyx_CFunc_void____object____float___to_py, /*tp_dealloc*/
+  __pyx_tp_dealloc___pyx_scope_struct____Pyx_CFunc_bytes____object___to_py, /*tp_dealloc*/
+  #if PY_VERSION_HEX < 0x030800b4
   0, /*tp_print*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4
+  0, /*tp_vectorcall_offset*/
+  #endif
   0, /*tp_getattr*/
   0, /*tp_setattr*/
   #if PY_MAJOR_VERSION < 3
@@ -27042,7 +25499,7 @@ static PyTypeObject __pyx_scope_struct____Pyx_CFunc_void____object____float___to
   0, /*tp_dictoffset*/
   0, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new___pyx_scope_struct____Pyx_CFunc_void____object____float___to_py, /*tp_new*/
+  __pyx_tp_new___pyx_scope_struct____Pyx_CFunc_bytes____object___to_py, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -27055,16 +25512,25 @@ static PyTypeObject __pyx_scope_struct____Pyx_CFunc_void____object____float___to
   #if PY_VERSION_HEX >= 0x030400a1
   0, /*tp_finalize*/
   #endif
+  #if PY_VERSION_HEX >= 0x030800b1 && (!CYTHON_COMPILING_IN_PYPY || PYPY_VERSION_NUM >= 0x07030800)
+  0, /*tp_vectorcall*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4 && PY_VERSION_HEX < 0x03090000
+  0, /*tp_print*/
+  #endif
+  #if CYTHON_COMPILING_IN_PYPY && PY_VERSION_HEX >= 0x03090000
+  0, /*tp_pypy_flags*/
+  #endif
 };
 
-static struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_void____object____double___to_py *__pyx_freelist___pyx_scope_struct____Pyx_CFunc_void____object____double___to_py[8];
-static int __pyx_freecount___pyx_scope_struct____Pyx_CFunc_void____object____double___to_py = 0;
+static struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_float____object___to_py *__pyx_freelist___pyx_scope_struct____Pyx_CFunc_float____object___to_py[8];
+static int __pyx_freecount___pyx_scope_struct____Pyx_CFunc_float____object___to_py = 0;
 
-static PyObject *__pyx_tp_new___pyx_scope_struct____Pyx_CFunc_void____object____double___to_py(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+static PyObject *__pyx_tp_new___pyx_scope_struct____Pyx_CFunc_float____object___to_py(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
   PyObject *o;
-  if (CYTHON_COMPILING_IN_CPYTHON && likely((__pyx_freecount___pyx_scope_struct____Pyx_CFunc_void____object____double___to_py > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_void____object____double___to_py)))) {
-    o = (PyObject*)__pyx_freelist___pyx_scope_struct____Pyx_CFunc_void____object____double___to_py[--__pyx_freecount___pyx_scope_struct____Pyx_CFunc_void____object____double___to_py];
-    memset(o, 0, sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_void____object____double___to_py));
+  if (CYTHON_COMPILING_IN_CPYTHON && likely((__pyx_freecount___pyx_scope_struct____Pyx_CFunc_float____object___to_py > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_float____object___to_py)))) {
+    o = (PyObject*)__pyx_freelist___pyx_scope_struct____Pyx_CFunc_float____object___to_py[--__pyx_freecount___pyx_scope_struct____Pyx_CFunc_float____object___to_py];
+    memset(o, 0, sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_float____object___to_py));
     (void) PyObject_INIT(o, t);
   } else {
     o = (*t->tp_alloc)(t, 0);
@@ -27073,21 +25539,26 @@ static PyObject *__pyx_tp_new___pyx_scope_struct____Pyx_CFunc_void____object____
   return o;
 }
 
-static void __pyx_tp_dealloc___pyx_scope_struct____Pyx_CFunc_void____object____double___to_py(PyObject *o) {
-  if (CYTHON_COMPILING_IN_CPYTHON && ((__pyx_freecount___pyx_scope_struct____Pyx_CFunc_void____object____double___to_py < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_void____object____double___to_py)))) {
-    __pyx_freelist___pyx_scope_struct____Pyx_CFunc_void____object____double___to_py[__pyx_freecount___pyx_scope_struct____Pyx_CFunc_void____object____double___to_py++] = ((struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_void____object____double___to_py *)o);
+static void __pyx_tp_dealloc___pyx_scope_struct____Pyx_CFunc_float____object___to_py(PyObject *o) {
+  if (CYTHON_COMPILING_IN_CPYTHON && ((__pyx_freecount___pyx_scope_struct____Pyx_CFunc_float____object___to_py < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_float____object___to_py)))) {
+    __pyx_freelist___pyx_scope_struct____Pyx_CFunc_float____object___to_py[__pyx_freecount___pyx_scope_struct____Pyx_CFunc_float____object___to_py++] = ((struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_float____object___to_py *)o);
   } else {
     (*Py_TYPE(o)->tp_free)(o);
   }
 }
 
-static PyTypeObject __pyx_scope_struct____Pyx_CFunc_void____object____double___to_py = {
+static PyTypeObject __pyx_scope_struct____Pyx_CFunc_float____object___to_py = {
   PyVarObject_HEAD_INIT(0, 0)
-  "spavro.fast_binary.__pyx_scope_struct____Pyx_CFunc_void____object____double___to_py", /*tp_name*/
-  sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_void____object____double___to_py), /*tp_basicsize*/
+  "spavro.fast_binary.__pyx_scope_struct____Pyx_CFunc_float____object___to_py", /*tp_name*/
+  sizeof(struct __pyx_obj___pyx_scope_struct____Pyx_CFunc_float____object___to_py), /*tp_basicsize*/
   0, /*tp_itemsize*/
-  __pyx_tp_dealloc___pyx_scope_struct____Pyx_CFunc_void____object____double___to_py, /*tp_dealloc*/
+  __pyx_tp_dealloc___pyx_scope_struct____Pyx_CFunc_float____object___to_py, /*tp_dealloc*/
+  #if PY_VERSION_HEX < 0x030800b4
   0, /*tp_print*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4
+  0, /*tp_vectorcall_offset*/
+  #endif
   0, /*tp_getattr*/
   0, /*tp_setattr*/
   #if PY_MAJOR_VERSION < 3
@@ -27124,7 +25595,7 @@ static PyTypeObject __pyx_scope_struct____Pyx_CFunc_void____object____double___t
   0, /*tp_dictoffset*/
   0, /*tp_init*/
   0, /*tp_alloc*/
-  __pyx_tp_new___pyx_scope_struct____Pyx_CFunc_void____object____double___to_py, /*tp_new*/
+  __pyx_tp_new___pyx_scope_struct____Pyx_CFunc_float____object___to_py, /*tp_new*/
   0, /*tp_free*/
   0, /*tp_is_gc*/
   0, /*tp_bases*/
@@ -27137,6 +25608,15 @@ static PyTypeObject __pyx_scope_struct____Pyx_CFunc_void____object____double___t
   #if PY_VERSION_HEX >= 0x030400a1
   0, /*tp_finalize*/
   #endif
+  #if PY_VERSION_HEX >= 0x030800b1 && (!CYTHON_COMPILING_IN_PYPY || PYPY_VERSION_NUM >= 0x07030800)
+  0, /*tp_vectorcall*/
+  #endif
+  #if PY_VERSION_HEX >= 0x030800b4 && PY_VERSION_HEX < 0x03090000
+  0, /*tp_print*/
+  #endif
+  #if CYTHON_COMPILING_IN_PYPY && PY_VERSION_HEX >= 0x03090000
+  0, /*tp_pypy_flags*/
+  #endif
 };
 
 static PyMethodDef __pyx_methods[] = {
@@ -27187,6 +25667,7 @@ static struct PyModuleDef __pyx_moduledef = {
 
 static __Pyx_StringTabEntry __pyx_string_tab[] = {
   {&__pyx_kp_b_, __pyx_k_, sizeof(__pyx_k_), 0, 0, 0, 0},
+  {&__pyx_n_s_B, __pyx_k_B, sizeof(__pyx_k_B), 0, 0, 1, 1},
   {&__pyx_n_s_CheckField, __pyx_k_CheckField, sizeof(__pyx_k_CheckField), 0, 0, 1, 1},
   {&__pyx_kp_s_Checksum_failure, __pyx_k_Checksum_failure, sizeof(__pyx_k_Checksum_failure), 0, 0, 1, 0},
   {&__pyx_kp_s_Error_writing_record_schema_at_f, __pyx_k_Error_writing_record_schema_at_f, sizeof(__pyx_k_Error_writing_record_schema_at_f), 0, 0, 1, 0},
@@ -27231,9 +25712,10 @@ static __Pyx_StringTabEntry __pyx_string_tab[] = {
   {&__pyx_n_s_KeyError, __pyx_k_KeyError, sizeof(__pyx_k_KeyError), 0, 0, 1, 1},
   {&__pyx_n_s_LONG_MAX_VALUE, __pyx_k_LONG_MAX_VALUE, sizeof(__pyx_k_LONG_MAX_VALUE), 0, 0, 1, 1},
   {&__pyx_n_s_LONG_MIN_VALUE, __pyx_k_LONG_MIN_VALUE, sizeof(__pyx_k_LONG_MIN_VALUE), 0, 0, 1, 1},
+  {&__pyx_n_s_MemoryError, __pyx_k_MemoryError, sizeof(__pyx_k_MemoryError), 0, 0, 1, 1},
   {&__pyx_kp_s_No_matching_schema_for_datum, __pyx_k_No_matching_schema_for_datum, sizeof(__pyx_k_No_matching_schema_for_datum), 0, 0, 1, 0},
-  {&__pyx_kp_s_Non_integer_value_or_overflow_S, __pyx_k_Non_integer_value_or_overflow_S, sizeof(__pyx_k_Non_integer_value_or_overflow_S), 0, 0, 1, 0},
-  {&__pyx_kp_s_Not_a_boolean_value_Schema, __pyx_k_Not_a_boolean_value_Schema, sizeof(__pyx_k_Not_a_boolean_value_Schema), 0, 0, 1, 0},
+  {&__pyx_kp_s_Non_integer_value_or_overflow, __pyx_k_Non_integer_value_or_overflow, sizeof(__pyx_k_Non_integer_value_or_overflow), 0, 0, 1, 0},
+  {&__pyx_kp_s_Not_a_boolean_value, __pyx_k_Not_a_boolean_value, sizeof(__pyx_k_Not_a_boolean_value), 0, 0, 1, 0},
   {&__pyx_n_s_Pyx_CFunc_bint____object___to, __pyx_k_Pyx_CFunc_bint____object___to, sizeof(__pyx_k_Pyx_CFunc_bint____object___to), 0, 0, 1, 1},
   {&__pyx_n_s_Pyx_CFunc_bytes____object___to, __pyx_k_Pyx_CFunc_bytes____object___to, sizeof(__pyx_k_Pyx_CFunc_bytes____object___to), 0, 0, 1, 1},
   {&__pyx_n_s_Pyx_CFunc_double____object___t, __pyx_k_Pyx_CFunc_double____object___t, sizeof(__pyx_k_Pyx_CFunc_double____object___t), 0, 0, 1, 1},
@@ -27241,10 +25723,7 @@ static __Pyx_StringTabEntry __pyx_string_tab[] = {
   {&__pyx_n_s_Pyx_CFunc_long__long____object, __pyx_k_Pyx_CFunc_long__long____object, sizeof(__pyx_k_Pyx_CFunc_long__long____object), 0, 0, 1, 1},
   {&__pyx_n_s_Pyx_CFunc_object____object___t, __pyx_k_Pyx_CFunc_object____object___t, sizeof(__pyx_k_Pyx_CFunc_object____object___t), 0, 0, 1, 1},
   {&__pyx_n_s_Pyx_CFunc_unicode____object, __pyx_k_Pyx_CFunc_unicode____object, sizeof(__pyx_k_Pyx_CFunc_unicode____object), 0, 0, 1, 1},
-  {&__pyx_n_s_Pyx_CFunc_void____object____do, __pyx_k_Pyx_CFunc_void____object____do, sizeof(__pyx_k_Pyx_CFunc_void____object____do), 0, 0, 1, 1},
-  {&__pyx_n_s_Pyx_CFunc_void____object____fl, __pyx_k_Pyx_CFunc_void____object____fl, sizeof(__pyx_k_Pyx_CFunc_void____object____fl), 0, 0, 1, 1},
   {&__pyx_n_s_Pyx_CFunc_void____object____lo, __pyx_k_Pyx_CFunc_void____object____lo, sizeof(__pyx_k_Pyx_CFunc_void____object____lo), 0, 0, 1, 1},
-  {&__pyx_n_s_Pyx_CFunc_void____object____ob, __pyx_k_Pyx_CFunc_void____object____ob, sizeof(__pyx_k_Pyx_CFunc_void____object____ob), 0, 0, 1, 1},
   {&__pyx_n_s_ReadField, __pyx_k_ReadField, sizeof(__pyx_k_ReadField), 0, 0, 1, 1},
   {&__pyx_kp_s_Read_leaf_values, __pyx_k_Read_leaf_values, sizeof(__pyx_k_Read_leaf_values), 0, 0, 1, 0},
   {&__pyx_n_s_ReaderPlaceholder, __pyx_k_ReaderPlaceholder, sizeof(__pyx_k_ReaderPlaceholder), 0, 0, 1, 1},
@@ -27253,13 +25732,11 @@ static __Pyx_StringTabEntry __pyx_string_tab[] = {
   {&__pyx_n_s_RuntimeError, __pyx_k_RuntimeError, sizeof(__pyx_k_RuntimeError), 0, 0, 1, 1},
   {&__pyx_kp_s_Schema_violation_is_not_an_examp, __pyx_k_Schema_violation_is_not_an_examp, sizeof(__pyx_k_Schema_violation_is_not_an_examp), 0, 0, 1, 0},
   {&__pyx_kp_s_Schema_violation_value_overflow, __pyx_k_Schema_violation_value_overflow, sizeof(__pyx_k_Schema_violation_value_overflow), 0, 0, 1, 0},
-  {&__pyx_kp_s_Size_Mismatch_for_Fixed_data_Sc, __pyx_k_Size_Mismatch_for_Fixed_data_Sc, sizeof(__pyx_k_Size_Mismatch_for_Fixed_data_Sc), 0, 0, 1, 0},
   {&__pyx_n_s_TypeError, __pyx_k_TypeError, sizeof(__pyx_k_TypeError), 0, 0, 1, 1},
   {&__pyx_kp_s_Unable_to_process_union_schema_u, __pyx_k_Unable_to_process_union_schema_u, sizeof(__pyx_k_Unable_to_process_union_schema_u), 0, 0, 1, 0},
   {&__pyx_n_s_WriteField, __pyx_k_WriteField, sizeof(__pyx_k_WriteField), 0, 0, 1, 1},
   {&__pyx_kp_s_Write_leaf_values, __pyx_k_Write_leaf_values, sizeof(__pyx_k_Write_leaf_values), 0, 0, 1, 0},
   {&__pyx_n_s_WriterPlaceholder, __pyx_k_WriterPlaceholder, sizeof(__pyx_k_WriterPlaceholder), 0, 0, 1, 1},
-  {&__pyx_n_s_WriterPlaceholder___call, __pyx_k_WriterPlaceholder___call, sizeof(__pyx_k_WriterPlaceholder___call), 0, 0, 1, 1},
   {&__pyx_n_s_WriterPlaceholder___init, __pyx_k_WriterPlaceholder___init, sizeof(__pyx_k_WriterPlaceholder___init), 0, 0, 1, 1},
   {&__pyx_n_s__10, __pyx_k__10, sizeof(__pyx_k__10), 0, 0, 1, 1},
   {&__pyx_kp_s__19, __pyx_k__19, sizeof(__pyx_k__19), 0, 0, 1, 0},
@@ -27284,11 +25761,6 @@ static __Pyx_StringTabEntry __pyx_string_tab[] = {
   {&__pyx_n_s_check_string, __pyx_k_check_string, sizeof(__pyx_k_check_string), 0, 0, 1, 1},
   {&__pyx_n_s_check_type, __pyx_k_check_type, sizeof(__pyx_k_check_type), 0, 0, 1, 1},
   {&__pyx_n_s_check_type_map, __pyx_k_check_type_map, sizeof(__pyx_k_check_type_map), 0, 0, 1, 1},
-  {&__pyx_n_s_checked_boolean_writer, __pyx_k_checked_boolean_writer, sizeof(__pyx_k_checked_boolean_writer), 0, 0, 1, 1},
-  {&__pyx_n_s_checked_int_write, __pyx_k_checked_int_write, sizeof(__pyx_k_checked_int_write), 0, 0, 1, 1},
-  {&__pyx_n_s_checked_long_write, __pyx_k_checked_long_write, sizeof(__pyx_k_checked_long_write), 0, 0, 1, 1},
-  {&__pyx_n_s_checked_string_writer, __pyx_k_checked_string_writer, sizeof(__pyx_k_checked_string_writer), 0, 0, 1, 1},
-  {&__pyx_n_s_checked_write_fixed, __pyx_k_checked_write_fixed, sizeof(__pyx_k_checked_write_fixed), 0, 0, 1, 1},
   {&__pyx_n_s_checksum, __pyx_k_checksum, sizeof(__pyx_k_checksum), 0, 0, 1, 1},
   {&__pyx_n_s_cline_in_traceback, __pyx_k_cline_in_traceback, sizeof(__pyx_k_cline_in_traceback), 0, 0, 1, 1},
   {&__pyx_n_s_collections, __pyx_k_collections, sizeof(__pyx_k_collections), 0, 0, 1, 1},
@@ -27297,18 +25769,15 @@ static __Pyx_StringTabEntry __pyx_string_tab[] = {
   {&__pyx_n_s_crc32, __pyx_k_crc32, sizeof(__pyx_k_crc32), 0, 0, 1, 1},
   {&__pyx_n_s_create_promotions_for_union_loca, __pyx_k_create_promotions_for_union_loca, sizeof(__pyx_k_create_promotions_for_union_loca), 0, 0, 1, 1},
   {&__pyx_n_s_custom_schema, __pyx_k_custom_schema, sizeof(__pyx_k_custom_schema), 0, 0, 1, 1},
-  {&__pyx_n_s_data_writer, __pyx_k_data_writer, sizeof(__pyx_k_data_writer), 0, 0, 1, 1},
   {&__pyx_n_s_datum, __pyx_k_datum, sizeof(__pyx_k_datum), 0, 0, 1, 1},
   {&__pyx_n_s_default, __pyx_k_default, sizeof(__pyx_k_default), 0, 0, 1, 1},
   {&__pyx_n_s_doc, __pyx_k_doc, sizeof(__pyx_k_doc), 0, 0, 1, 1},
   {&__pyx_n_s_double, __pyx_k_double, sizeof(__pyx_k_double), 0, 0, 1, 1},
   {&__pyx_n_u_double, __pyx_k_double, sizeof(__pyx_k_double), 0, 1, 0, 1},
-  {&__pyx_n_s_e, __pyx_k_e, sizeof(__pyx_k_e), 0, 0, 1, 1},
   {&__pyx_n_s_encode, __pyx_k_encode, sizeof(__pyx_k_encode), 0, 0, 1, 1},
   {&__pyx_n_s_enum, __pyx_k_enum, sizeof(__pyx_k_enum), 0, 0, 1, 1},
   {&__pyx_n_u_enum, __pyx_k_enum, sizeof(__pyx_k_enum), 0, 1, 0, 1},
   {&__pyx_n_s_enum_check, __pyx_k_enum_check, sizeof(__pyx_k_enum_check), 0, 0, 1, 1},
-  {&__pyx_n_s_enum_index, __pyx_k_enum_index, sizeof(__pyx_k_enum_index), 0, 0, 1, 1},
   {&__pyx_n_s_enum_reader, __pyx_k_enum_reader, sizeof(__pyx_k_enum_reader), 0, 0, 1, 1},
   {&__pyx_n_s_enumerate, __pyx_k_enumerate, sizeof(__pyx_k_enumerate), 0, 0, 1, 1},
   {&__pyx_n_s_field, __pyx_k_field, sizeof(__pyx_k_field), 0, 0, 1, 1},
@@ -27334,10 +25803,10 @@ static __Pyx_StringTabEntry __pyx_string_tab[] = {
   {&__pyx_n_s_int, __pyx_k_int, sizeof(__pyx_k_int), 0, 0, 1, 1},
   {&__pyx_n_u_int, __pyx_k_int, sizeof(__pyx_k_int), 0, 1, 0, 1},
   {&__pyx_n_s_integer_types, __pyx_k_integer_types, sizeof(__pyx_k_integer_types), 0, 0, 1, 1},
-  {&__pyx_kp_s_is_not_a_string_value_Schema, __pyx_k_is_not_a_string_value_Schema, sizeof(__pyx_k_is_not_a_string_value_Schema), 0, 0, 1, 0},
+  {&__pyx_n_s_iobuffer, __pyx_k_iobuffer, sizeof(__pyx_k_iobuffer), 0, 0, 1, 1},
+  {&__pyx_kp_s_is_not_a_string_value, __pyx_k_is_not_a_string_value, sizeof(__pyx_k_is_not_a_string_value), 0, 0, 1, 0},
   {&__pyx_n_s_item, __pyx_k_item, sizeof(__pyx_k_item), 0, 0, 1, 1},
   {&__pyx_n_s_item_check, __pyx_k_item_check, sizeof(__pyx_k_item_check), 0, 0, 1, 1},
-  {&__pyx_n_s_item_count, __pyx_k_item_count, sizeof(__pyx_k_item_count), 0, 0, 1, 1},
   {&__pyx_n_s_item_reader, __pyx_k_item_reader, sizeof(__pyx_k_item_reader), 0, 0, 1, 1},
   {&__pyx_n_s_item_writer, __pyx_k_item_writer, sizeof(__pyx_k_item_writer), 0, 0, 1, 1},
   {&__pyx_n_s_items, __pyx_k_items, sizeof(__pyx_k_items), 0, 0, 1, 1},
@@ -27355,13 +25824,10 @@ static __Pyx_StringTabEntry __pyx_string_tab[] = {
   {&__pyx_n_s_make_array_reader_locals_array_r, __pyx_k_make_array_reader_locals_array_r, sizeof(__pyx_k_make_array_reader_locals_array_r), 0, 0, 1, 1},
   {&__pyx_n_s_make_array_reader_locals_lambda, __pyx_k_make_array_reader_locals_lambda, sizeof(__pyx_k_make_array_reader_locals_lambda), 0, 0, 1, 1},
   {&__pyx_n_s_make_array_writer, __pyx_k_make_array_writer, sizeof(__pyx_k_make_array_writer), 0, 0, 1, 1},
-  {&__pyx_n_s_make_array_writer_locals_lambda, __pyx_k_make_array_writer_locals_lambda, sizeof(__pyx_k_make_array_writer_locals_lambda), 0, 0, 1, 1},
-  {&__pyx_n_s_make_array_writer_locals_write_a, __pyx_k_make_array_writer_locals_write_a, sizeof(__pyx_k_make_array_writer_locals_write_a), 0, 0, 1, 1},
   {&__pyx_n_s_make_boolean_check, __pyx_k_make_boolean_check, sizeof(__pyx_k_make_boolean_check), 0, 0, 1, 1},
   {&__pyx_n_s_make_boolean_check_locals_lambda, __pyx_k_make_boolean_check_locals_lambda, sizeof(__pyx_k_make_boolean_check_locals_lambda), 0, 0, 1, 1},
   {&__pyx_n_s_make_boolean_reader, __pyx_k_make_boolean_reader, sizeof(__pyx_k_make_boolean_reader), 0, 0, 1, 1},
   {&__pyx_n_s_make_boolean_writer, __pyx_k_make_boolean_writer, sizeof(__pyx_k_make_boolean_writer), 0, 0, 1, 1},
-  {&__pyx_n_s_make_boolean_writer_locals_check, __pyx_k_make_boolean_writer_locals_check, sizeof(__pyx_k_make_boolean_writer_locals_check), 0, 0, 1, 1},
   {&__pyx_n_s_make_byte_check, __pyx_k_make_byte_check, sizeof(__pyx_k_make_byte_check), 0, 0, 1, 1},
   {&__pyx_n_s_make_byte_check_locals_lambda, __pyx_k_make_byte_check_locals_lambda, sizeof(__pyx_k_make_byte_check_locals_lambda), 0, 0, 1, 1},
   {&__pyx_n_s_make_byte_reader, __pyx_k_make_byte_reader, sizeof(__pyx_k_make_byte_reader), 0, 0, 1, 1},
@@ -27379,34 +25845,27 @@ static __Pyx_StringTabEntry __pyx_string_tab[] = {
   {&__pyx_n_s_make_enum_reader_locals_enum_rea, __pyx_k_make_enum_reader_locals_enum_rea, sizeof(__pyx_k_make_enum_reader_locals_enum_rea), 0, 0, 1, 1},
   {&__pyx_n_s_make_enum_reader_locals_lambda, __pyx_k_make_enum_reader_locals_lambda, sizeof(__pyx_k_make_enum_reader_locals_lambda), 0, 0, 1, 1},
   {&__pyx_n_s_make_enum_writer, __pyx_k_make_enum_writer, sizeof(__pyx_k_make_enum_writer), 0, 0, 1, 1},
-  {&__pyx_n_s_make_enum_writer_locals_lambda, __pyx_k_make_enum_writer_locals_lambda, sizeof(__pyx_k_make_enum_writer_locals_lambda), 0, 0, 1, 1},
-  {&__pyx_n_s_make_enum_writer_locals_write_en, __pyx_k_make_enum_writer_locals_write_en, sizeof(__pyx_k_make_enum_writer_locals_write_en), 0, 0, 1, 1},
   {&__pyx_n_s_make_fixed_check, __pyx_k_make_fixed_check, sizeof(__pyx_k_make_fixed_check), 0, 0, 1, 1},
   {&__pyx_n_s_make_fixed_check_locals_fixed_ch, __pyx_k_make_fixed_check_locals_fixed_ch, sizeof(__pyx_k_make_fixed_check_locals_fixed_ch), 0, 0, 1, 1},
   {&__pyx_n_s_make_fixed_reader, __pyx_k_make_fixed_reader, sizeof(__pyx_k_make_fixed_reader), 0, 0, 1, 1},
   {&__pyx_n_s_make_fixed_reader_locals_fixed_r, __pyx_k_make_fixed_reader_locals_fixed_r, sizeof(__pyx_k_make_fixed_reader_locals_fixed_r), 0, 0, 1, 1},
   {&__pyx_n_s_make_fixed_reader_locals_lambda, __pyx_k_make_fixed_reader_locals_lambda, sizeof(__pyx_k_make_fixed_reader_locals_lambda), 0, 0, 1, 1},
   {&__pyx_n_s_make_fixed_writer, __pyx_k_make_fixed_writer, sizeof(__pyx_k_make_fixed_writer), 0, 0, 1, 1},
-  {&__pyx_n_s_make_fixed_writer_locals_checked, __pyx_k_make_fixed_writer_locals_checked, sizeof(__pyx_k_make_fixed_writer_locals_checked), 0, 0, 1, 1},
   {&__pyx_n_s_make_float_check, __pyx_k_make_float_check, sizeof(__pyx_k_make_float_check), 0, 0, 1, 1},
   {&__pyx_n_s_make_float_check_locals_lambda, __pyx_k_make_float_check_locals_lambda, sizeof(__pyx_k_make_float_check_locals_lambda), 0, 0, 1, 1},
   {&__pyx_n_s_make_float_reader, __pyx_k_make_float_reader, sizeof(__pyx_k_make_float_reader), 0, 0, 1, 1},
   {&__pyx_n_s_make_float_writer, __pyx_k_make_float_writer, sizeof(__pyx_k_make_float_writer), 0, 0, 1, 1},
   {&__pyx_n_s_make_int_writer, __pyx_k_make_int_writer, sizeof(__pyx_k_make_int_writer), 0, 0, 1, 1},
-  {&__pyx_n_s_make_int_writer_locals_checked_i, __pyx_k_make_int_writer_locals_checked_i, sizeof(__pyx_k_make_int_writer_locals_checked_i), 0, 0, 1, 1},
   {&__pyx_n_s_make_long_check, __pyx_k_make_long_check, sizeof(__pyx_k_make_long_check), 0, 0, 1, 1},
   {&__pyx_n_s_make_long_check_locals_lambda, __pyx_k_make_long_check_locals_lambda, sizeof(__pyx_k_make_long_check_locals_lambda), 0, 0, 1, 1},
   {&__pyx_n_s_make_long_reader, __pyx_k_make_long_reader, sizeof(__pyx_k_make_long_reader), 0, 0, 1, 1},
   {&__pyx_n_s_make_long_writer, __pyx_k_make_long_writer, sizeof(__pyx_k_make_long_writer), 0, 0, 1, 1},
-  {&__pyx_n_s_make_long_writer_locals_checked, __pyx_k_make_long_writer_locals_checked, sizeof(__pyx_k_make_long_writer_locals_checked), 0, 0, 1, 1},
   {&__pyx_n_s_make_map_check, __pyx_k_make_map_check, sizeof(__pyx_k_make_map_check), 0, 0, 1, 1},
   {&__pyx_n_s_make_map_check_locals_map_check, __pyx_k_make_map_check_locals_map_check, sizeof(__pyx_k_make_map_check_locals_map_check), 0, 0, 1, 1},
   {&__pyx_n_s_make_map_reader, __pyx_k_make_map_reader, sizeof(__pyx_k_make_map_reader), 0, 0, 1, 1},
   {&__pyx_n_s_make_map_reader_locals_lambda, __pyx_k_make_map_reader_locals_lambda, sizeof(__pyx_k_make_map_reader_locals_lambda), 0, 0, 1, 1},
   {&__pyx_n_s_make_map_reader_locals_map_reade, __pyx_k_make_map_reader_locals_map_reade, sizeof(__pyx_k_make_map_reader_locals_map_reade), 0, 0, 1, 1},
   {&__pyx_n_s_make_map_writer, __pyx_k_make_map_writer, sizeof(__pyx_k_make_map_writer), 0, 0, 1, 1},
-  {&__pyx_n_s_make_map_writer_locals_lambda, __pyx_k_make_map_writer_locals_lambda, sizeof(__pyx_k_make_map_writer_locals_lambda), 0, 0, 1, 1},
-  {&__pyx_n_s_make_map_writer_locals_write_map, __pyx_k_make_map_writer_locals_write_map, sizeof(__pyx_k_make_map_writer_locals_write_map), 0, 0, 1, 1},
   {&__pyx_n_s_make_null_check, __pyx_k_make_null_check, sizeof(__pyx_k_make_null_check), 0, 0, 1, 1},
   {&__pyx_n_s_make_null_check_locals_lambda, __pyx_k_make_null_check_locals_lambda, sizeof(__pyx_k_make_null_check_locals_lambda), 0, 0, 1, 1},
   {&__pyx_n_s_make_null_reader, __pyx_k_make_null_reader, sizeof(__pyx_k_make_null_reader), 0, 0, 1, 1},
@@ -27417,15 +25876,12 @@ static __Pyx_StringTabEntry __pyx_string_tab[] = {
   {&__pyx_n_s_make_record_reader_locals_lambda, __pyx_k_make_record_reader_locals_lambda, sizeof(__pyx_k_make_record_reader_locals_lambda), 0, 0, 1, 1},
   {&__pyx_n_s_make_record_reader_locals_record, __pyx_k_make_record_reader_locals_record, sizeof(__pyx_k_make_record_reader_locals_record), 0, 0, 1, 1},
   {&__pyx_n_s_make_record_writer, __pyx_k_make_record_writer, sizeof(__pyx_k_make_record_writer), 0, 0, 1, 1},
-  {&__pyx_n_s_make_record_writer_locals_lambda, __pyx_k_make_record_writer_locals_lambda, sizeof(__pyx_k_make_record_writer_locals_lambda), 0, 0, 1, 1},
-  {&__pyx_n_s_make_record_writer_locals_write, __pyx_k_make_record_writer_locals_write, sizeof(__pyx_k_make_record_writer_locals_write), 0, 0, 1, 1},
   {&__pyx_n_s_make_skip_reader, __pyx_k_make_skip_reader, sizeof(__pyx_k_make_skip_reader), 0, 0, 1, 1},
   {&__pyx_n_s_make_skip_reader_locals_lambda, __pyx_k_make_skip_reader_locals_lambda, sizeof(__pyx_k_make_skip_reader_locals_lambda), 0, 0, 1, 1},
   {&__pyx_n_s_make_skip_reader_locals_read_ski, __pyx_k_make_skip_reader_locals_read_ski, sizeof(__pyx_k_make_skip_reader_locals_read_ski), 0, 0, 1, 1},
   {&__pyx_n_s_make_string_check, __pyx_k_make_string_check, sizeof(__pyx_k_make_string_check), 0, 0, 1, 1},
   {&__pyx_n_s_make_string_reader, __pyx_k_make_string_reader, sizeof(__pyx_k_make_string_reader), 0, 0, 1, 1},
   {&__pyx_n_s_make_string_writer, __pyx_k_make_string_writer, sizeof(__pyx_k_make_string_writer), 0, 0, 1, 1},
-  {&__pyx_n_s_make_string_writer_locals_checke, __pyx_k_make_string_writer_locals_checke, sizeof(__pyx_k_make_string_writer_locals_checke), 0, 0, 1, 1},
   {&__pyx_n_s_make_union_check, __pyx_k_make_union_check, sizeof(__pyx_k_make_union_check), 0, 0, 1, 1},
   {&__pyx_n_s_make_union_check_locals_union_ch, __pyx_k_make_union_check_locals_union_ch, sizeof(__pyx_k_make_union_check_locals_union_ch), 0, 0, 1, 1},
   {&__pyx_n_s_make_union_reader, __pyx_k_make_union_reader, sizeof(__pyx_k_make_union_reader), 0, 0, 1, 1},
@@ -27433,9 +25889,7 @@ static __Pyx_StringTabEntry __pyx_string_tab[] = {
   {&__pyx_n_s_make_union_reader_locals_union_r, __pyx_k_make_union_reader_locals_union_r, sizeof(__pyx_k_make_union_reader_locals_union_r), 0, 0, 1, 1},
   {&__pyx_n_s_make_union_writer, __pyx_k_make_union_writer, sizeof(__pyx_k_make_union_writer), 0, 0, 1, 1},
   {&__pyx_n_s_make_union_writer_locals_complex, __pyx_k_make_union_writer_locals_complex, sizeof(__pyx_k_make_union_writer_locals_complex), 0, 0, 1, 1},
-  {&__pyx_n_s_make_union_writer_locals_lambda, __pyx_k_make_union_writer_locals_lambda, sizeof(__pyx_k_make_union_writer_locals_lambda), 0, 0, 1, 1},
   {&__pyx_n_s_make_union_writer_locals_simple, __pyx_k_make_union_writer_locals_simple, sizeof(__pyx_k_make_union_writer_locals_simple), 0, 0, 1, 1},
-  {&__pyx_n_s_make_union_writer_locals_write_u, __pyx_k_make_union_writer_locals_write_u, sizeof(__pyx_k_make_union_writer_locals_write_u), 0, 0, 1, 1},
   {&__pyx_n_s_map, __pyx_k_map, sizeof(__pyx_k_map), 0, 0, 1, 1},
   {&__pyx_n_u_map, __pyx_k_map, sizeof(__pyx_k_map), 0, 1, 0, 1},
   {&__pyx_n_s_map_check, __pyx_k_map_check, sizeof(__pyx_k_map_check), 0, 0, 1, 1},
@@ -27526,19 +25980,14 @@ static __Pyx_StringTabEntry __pyx_string_tab[] = {
   {&__pyx_n_s_values, __pyx_k_values, sizeof(__pyx_k_values), 0, 0, 1, 1},
   {&__pyx_n_s_wrap, __pyx_k_wrap, sizeof(__pyx_k_wrap), 0, 0, 1, 1},
   {&__pyx_n_s_write, __pyx_k_write, sizeof(__pyx_k_write), 0, 0, 1, 1},
-  {&__pyx_n_s_write_array, __pyx_k_write_array, sizeof(__pyx_k_write_array), 0, 0, 1, 1},
   {&__pyx_n_s_write_boolean, __pyx_k_write_boolean, sizeof(__pyx_k_write_boolean), 0, 0, 1, 1},
   {&__pyx_n_s_write_bytes, __pyx_k_write_bytes, sizeof(__pyx_k_write_bytes), 0, 0, 1, 1},
   {&__pyx_n_s_write_crc32, __pyx_k_write_crc32, sizeof(__pyx_k_write_crc32), 0, 0, 1, 1},
   {&__pyx_n_s_write_double, __pyx_k_write_double, sizeof(__pyx_k_write_double), 0, 0, 1, 1},
-  {&__pyx_n_s_write_enum, __pyx_k_write_enum, sizeof(__pyx_k_write_enum), 0, 0, 1, 1},
   {&__pyx_n_s_write_float, __pyx_k_write_float, sizeof(__pyx_k_write_float), 0, 0, 1, 1},
   {&__pyx_n_s_write_int, __pyx_k_write_int, sizeof(__pyx_k_write_int), 0, 0, 1, 1},
   {&__pyx_n_s_write_long, __pyx_k_write_long, sizeof(__pyx_k_write_long), 0, 0, 1, 1},
-  {&__pyx_n_s_write_map, __pyx_k_write_map, sizeof(__pyx_k_write_map), 0, 0, 1, 1},
   {&__pyx_n_s_write_null, __pyx_k_write_null, sizeof(__pyx_k_write_null), 0, 0, 1, 1},
-  {&__pyx_n_s_write_record, __pyx_k_write_record, sizeof(__pyx_k_write_record), 0, 0, 1, 1},
-  {&__pyx_n_s_write_union, __pyx_k_write_union, sizeof(__pyx_k_write_union), 0, 0, 1, 1},
   {&__pyx_n_s_write_utf8, __pyx_k_write_utf8, sizeof(__pyx_k_write_utf8), 0, 0, 1, 1},
   {&__pyx_n_s_writer, __pyx_k_writer, sizeof(__pyx_k_writer), 0, 0, 1, 1},
   {&__pyx_n_s_writer_lookup, __pyx_k_writer_lookup, sizeof(__pyx_k_writer_lookup), 0, 0, 1, 1},
@@ -27547,15 +25996,16 @@ static __Pyx_StringTabEntry __pyx_string_tab[] = {
   {0, 0, 0, 0, 0, 0, 0}
 };
 static CYTHON_SMALL_CODE int __Pyx_InitCachedBuiltins(void) {
-  __pyx_builtin_object = __Pyx_GetBuiltinName(__pyx_n_s_object); if (!__pyx_builtin_object) __PYX_ERR(0, 239, __pyx_L1_error)
-  __pyx_builtin_IndexError = __Pyx_GetBuiltinName(__pyx_n_s_IndexError); if (!__pyx_builtin_IndexError) __PYX_ERR(0, 111, __pyx_L1_error)
-  __pyx_builtin_TypeError = __Pyx_GetBuiltinName(__pyx_n_s_TypeError); if (!__pyx_builtin_TypeError) __PYX_ERR(0, 112, __pyx_L1_error)
-  __pyx_builtin_range = __Pyx_GetBuiltinName(__pyx_n_s_range); if (!__pyx_builtin_range) __PYX_ERR(0, 144, __pyx_L1_error)
-  __pyx_builtin_KeyError = __Pyx_GetBuiltinName(__pyx_n_s_KeyError); if (!__pyx_builtin_KeyError) __PYX_ERR(0, 266, __pyx_L1_error)
-  __pyx_builtin_all = __Pyx_GetBuiltinName(__pyx_n_s_all); if (!__pyx_builtin_all) __PYX_ERR(0, 369, __pyx_L1_error)
-  __pyx_builtin_any = __Pyx_GetBuiltinName(__pyx_n_s_any); if (!__pyx_builtin_any) __PYX_ERR(0, 413, __pyx_L1_error)
-  __pyx_builtin_enumerate = __Pyx_GetBuiltinName(__pyx_n_s_enumerate); if (!__pyx_builtin_enumerate) __PYX_ERR(0, 514, __pyx_L1_error)
-  __pyx_builtin_RuntimeError = __Pyx_GetBuiltinName(__pyx_n_s_RuntimeError); if (!__pyx_builtin_RuntimeError) __PYX_ERR(0, 826, __pyx_L1_error)
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  * def make_record_writer(schema):             # <<<<<<<<<<<<<<
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+  /* "spavro/fast_binary.pyx":833
  * class FastBinaryDecoder(object):
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-  /* "spavro/fast_binary.pyx":796
+  /* "spavro/fast_binary.pyx":839
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-  /* "spavro/fast_binary.pyx":799
+  /* "spavro/fast_binary.pyx":842
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+  __pyx_tuple__183 = PyTuple_Pack(1, __pyx_n_s_self); if (unlikely(!__pyx_tuple__183)) __PYX_ERR(0, 842, __pyx_L1_error)
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-  /* "spavro/fast_binary.pyx":802
+  /* "spavro/fast_binary.pyx":845
  *         return None
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  *     def read_boolean(self):             # <<<<<<<<<<<<<<
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-  __pyx_tuple__213 = PyTuple_Pack(1, __pyx_n_s_self); if (unlikely(!__pyx_tuple__213)) __PYX_ERR(0, 802, __pyx_L1_error)
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+  __pyx_tuple__185 = PyTuple_Pack(1, __pyx_n_s_self); if (unlikely(!__pyx_tuple__185)) __PYX_ERR(0, 845, __pyx_L1_error)
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-  /* "spavro/fast_binary.pyx":805
+  /* "spavro/fast_binary.pyx":848
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  *     def read_int(self):             # <<<<<<<<<<<<<<
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-  __pyx_tuple__215 = PyTuple_Pack(1, __pyx_n_s_self); if (unlikely(!__pyx_tuple__215)) __PYX_ERR(0, 805, __pyx_L1_error)
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+  __pyx_tuple__187 = PyTuple_Pack(1, __pyx_n_s_self); if (unlikely(!__pyx_tuple__187)) __PYX_ERR(0, 848, __pyx_L1_error)
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+  __Pyx_GIVEREF(__pyx_tuple__187);
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-  /* "spavro/fast_binary.pyx":808
+  /* "spavro/fast_binary.pyx":851
  *         return read_long(self.reader)
  * 
  *     def read_long(self):             # <<<<<<<<<<<<<<
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+  __pyx_tuple__189 = PyTuple_Pack(1, __pyx_n_s_self); if (unlikely(!__pyx_tuple__189)) __PYX_ERR(0, 851, __pyx_L1_error)
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-  /* "spavro/fast_binary.pyx":811
+  /* "spavro/fast_binary.pyx":854
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+  __pyx_tuple__191 = PyTuple_Pack(1, __pyx_n_s_self); if (unlikely(!__pyx_tuple__191)) __PYX_ERR(0, 854, __pyx_L1_error)
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-  /* "spavro/fast_binary.pyx":814
+  /* "spavro/fast_binary.pyx":857
  *         return read_float(self.reader)
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-  __pyx_tuple__221 = PyTuple_Pack(1, __pyx_n_s_self); if (unlikely(!__pyx_tuple__221)) __PYX_ERR(0, 814, __pyx_L1_error)
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-  /* "spavro/fast_binary.pyx":817
+  /* "spavro/fast_binary.pyx":860
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-  /* "spavro/fast_binary.pyx":820
+  /* "spavro/fast_binary.pyx":863
  *         return read_bytes(self.reader)
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-  /* "spavro/fast_binary.pyx":823
+  /* "spavro/fast_binary.pyx":866
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-  __pyx_tuple__227 = PyTuple_Pack(3, __pyx_n_s_self, __pyx_n_s_bytes, __pyx_n_s_checksum); if (unlikely(!__pyx_tuple__227)) __PYX_ERR(0, 823, __pyx_L1_error)
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+  __pyx_tuple__199 = PyTuple_Pack(3, __pyx_n_s_self, __pyx_n_s_bytes, __pyx_n_s_checksum); if (unlikely(!__pyx_tuple__199)) __PYX_ERR(0, 866, __pyx_L1_error)
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-  /* "spavro/fast_binary.pyx":828
+  /* "spavro/fast_binary.pyx":871
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-  /* "spavro/fast_binary.pyx":831
+  /* "spavro/fast_binary.pyx":874
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  *     def skip_boolean(self):             # <<<<<<<<<<<<<<
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  *         self.reader.seek(self.reader.tell() + n)
+ * 
  */
-  __pyx_t_3 = __Pyx_CyFunction_NewEx(&__pyx_mdef_6spavro_11fast_binary_17FastBinaryDecoder_39skip, 0, __pyx_n_s_FastBinaryDecoder_skip, NULL, __pyx_n_s_spavro_fast_binary, __pyx_d, ((PyObject *)__pyx_codeobj__246)); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 852, __pyx_L1_error)
+  __pyx_t_3 = __Pyx_CyFunction_New(&__pyx_mdef_6spavro_11fast_binary_17FastBinaryDecoder_39skip, 0, __pyx_n_s_FastBinaryDecoder_skip, NULL, __pyx_n_s_spavro_fast_binary, __pyx_d, ((PyObject *)__pyx_codeobj__218)); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 895, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_3);
-  if (__Pyx_SetNameInClass(__pyx_t_2, __pyx_n_s_skip, __pyx_t_3) < 0) __PYX_ERR(0, 852, __pyx_L1_error)
+  if (__Pyx_SetNameInClass(__pyx_t_2, __pyx_n_s_skip, __pyx_t_3) < 0) __PYX_ERR(0, 895, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
 
-  /* "spavro/fast_binary.pyx":788
+  /* "spavro/fast_binary.pyx":831
  * 
  * 
  * class FastBinaryDecoder(object):             # <<<<<<<<<<<<<<
  *     """Read leaf values."""
  *     def __init__(self, reader):
  */
-  __pyx_t_3 = __Pyx_Py3ClassCreate(__pyx_t_1, __pyx_n_s_FastBinaryDecoder, __pyx_tuple__206, __pyx_t_2, NULL, 0, 1); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 788, __pyx_L1_error)
+  __pyx_t_3 = __Pyx_Py3ClassCreate(__pyx_t_1, __pyx_n_s_FastBinaryDecoder, __pyx_tuple__178, __pyx_t_2, NULL, 0, 1); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 831, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_3);
-  if (PyDict_SetItem(__pyx_d, __pyx_n_s_FastBinaryDecoder, __pyx_t_3) < 0) __PYX_ERR(0, 788, __pyx_L1_error)
+  if (PyDict_SetItem(__pyx_d, __pyx_n_s_FastBinaryDecoder, __pyx_t_3) < 0) __PYX_ERR(0, 831, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
+  /* "spavro/fast_binary.pyx":969
+ * 
+ * 
+ * def write(iobuffer, datum, writer, schema):             # <<<<<<<<<<<<<<
+ *     cdef array.array outbuf = array.array('B', [])
+ *     execute(outbuf, datum, writer)
+ */
+  __pyx_t_1 = PyCFunction_NewEx(&__pyx_mdef_6spavro_11fast_binary_97write, NULL, __pyx_n_s_spavro_fast_binary); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 969, __pyx_L1_error)
+  __Pyx_GOTREF(__pyx_t_1);
+  if (PyDict_SetItem(__pyx_d, __pyx_n_s_write, __pyx_t_1) < 0) __PYX_ERR(0, 969, __pyx_L1_error)
+  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+
   /* "spavro/fast_binary.pyx":1
  * # Copyright (C) 2018 Pluralsight LLC             # <<<<<<<<<<<<<<
  * '''Fast Cython extension for reading / writing and validating AVRO records.
@@ -31471,10 +29808,10 @@ if (!__Pyx_RefNanny) {
 
   /* "cfunc.to_py":64
  * 
- * @cname("__Pyx_CFunc_void____object____double___to_py")
- * cdef object __Pyx_CFunc_void____object____double___to_py(void (*f)(object, double) except *):             # <<<<<<<<<<<<<<
- *     def wrap(object outbuf, double datum):
- *         """wrap(outbuf, datum: float) -> 'void'"""
+ * @cname("__Pyx_CFunc_float____object___to_py")
+ * cdef object __Pyx_CFunc_float____object___to_py(float (*f)(object) except *):             # <<<<<<<<<<<<<<
+ *     def wrap(object fo):
+ *         """wrap(fo) -> 'float'"""
  */
 
   /*--- Wrapped vars code ---*/
@@ -31603,7 +29940,7 @@ static PyObject* __Pyx_PyFunction_FastCallNoKw(PyCodeObject *co, PyObject **args
     return result;
 }
 #if 1 || PY_VERSION_HEX < 0x030600B1
-static PyObject *__Pyx_PyFunction_FastCallDict(PyObject *func, PyObject **args, int nargs, PyObject *kwargs) {
+static PyObject *__Pyx_PyFunction_FastCallDict(PyObject *func, PyObject **args, Py_ssize_t nargs, PyObject *kwargs) {
     PyCodeObject *co = (PyCodeObject *)PyFunction_GET_CODE(func);
     PyObject *globals = PyFunction_GET_GLOBALS(func);
     PyObject *argdefs = PyFunction_GET_DEFAULTS(func);
@@ -31674,12 +30011,12 @@ static PyObject *__Pyx_PyFunction_FastCallDict(PyObject *func, PyObject **args,
     }
 #if PY_MAJOR_VERSION >= 3
     result = PyEval_EvalCodeEx((PyObject*)co, globals, (PyObject *)NULL,
-                               args, nargs,
+                               args, (int)nargs,
                                k, (int)nk,
                                d, (int)nd, kwdefs, closure);
 #else
     result = PyEval_EvalCodeEx(co, globals, (PyObject *)NULL,
-                               args, nargs,
+                               args, (int)nargs,
                                k, (int)nk,
                                d, (int)nd, closure);
 #endif
@@ -31695,7 +30032,7 @@ static PyObject *__Pyx_PyFunction_FastCallDict(PyObject *func, PyObject **args,
 #if CYTHON_COMPILING_IN_CPYTHON
 static CYTHON_INLINE PyObject* __Pyx_PyObject_Call(PyObject *func, PyObject *arg, PyObject *kw) {
     PyObject *result;
-    ternaryfunc call = func->ob_type->tp_call;
+    ternaryfunc call = Py_TYPE(func)->tp_call;
     if (unlikely(!call))
         return PyObject_Call(func, arg, kw);
     if (unlikely(Py_EnterRecursiveCall((char*)" while calling a Python object")))
@@ -31782,7 +30119,7 @@ static CYTHON_INLINE PyObject* __Pyx_PyObject_CallOneArg(PyObject *func, PyObjec
         if (likely(PyCFunction_GET_FLAGS(func) & METH_O)) {
             return __Pyx_PyObject_CallMethO(func, arg);
 #if CYTHON_FAST_PYCCALL
-        } else if (PyCFunction_GET_FLAGS(func) & METH_FASTCALL) {
+        } else if (__Pyx_PyFastCFunction_Check(func)) {
             return __Pyx_PyCFunction_FastCall(func, &arg, 1);
 #endif
         }
@@ -31835,9 +30172,7 @@ static void __Pyx_WriteUnraisable(const char *name, CYTHON_UNUSED int clineno,
     PyGILState_STATE state;
     if (nogil)
         state = PyGILState_Ensure();
-#ifdef _MSC_VER
-    else state = (PyGILState_STATE)-1;
-#endif
+    else state = (PyGILState_STATE)0;
 #endif
     __Pyx_PyThreadState_assign
     __Pyx_ErrFetch(&old_exc, &old_val, &old_tb);
@@ -32274,13 +30609,7 @@ static void __Pyx_Raise(PyObject *type, PyObject *value, PyObject *tb, PyObject
     }
     PyErr_SetObject(type, value);
     if (tb) {
-#if CYTHON_COMPILING_IN_PYPY
-        PyObject *tmp_type, *tmp_value, *tmp_tb;
-        PyErr_Fetch(&tmp_type, &tmp_value, &tmp_tb);
-        Py_INCREF(tb);
-        PyErr_Restore(tmp_type, tmp_value, tb);
-        Py_XDECREF(tmp_tb);
-#else
+#if CYTHON_FAST_THREAD_STATE
         PyThreadState *tstate = __Pyx_PyThreadState_Current;
         PyObject* tmp_tb = tstate->curexc_traceback;
         if (tb != tmp_tb) {
@@ -32288,6 +30617,12 @@ static void __Pyx_Raise(PyObject *type, PyObject *value, PyObject *tb, PyObject
             tstate->curexc_traceback = tb;
             Py_XDECREF(tmp_tb);
         }
+#else
+        PyObject *tmp_type, *tmp_value, *tmp_tb;
+        PyErr_Fetch(&tmp_type, &tmp_value, &tmp_tb);
+        Py_INCREF(tb);
+        PyErr_Restore(tmp_type, tmp_value, tb);
+        Py_XDECREF(tmp_tb);
 #endif
     }
 bad:
@@ -32396,7 +30731,7 @@ static PyTypeObject* __Pyx_FetchCommonType(PyTypeObject* type) {
     goto done;
 }
 
-/* CythonFunction */
+/* CythonFunctionShared */
 #include <structmember.h>
 static PyObject *
 __Pyx_CyFunction_get_doc(__pyx_CyFunctionObject *op, CYTHON_UNUSED void *closure)
@@ -32689,7 +31024,8 @@ static PyObject *
 __Pyx_CyFunction_reduce(__pyx_CyFunctionObject *m, CYTHON_UNUSED PyObject *args)
 {
 #if PY_MAJOR_VERSION >= 3
-    return PyUnicode_FromString(m->func.m_ml->ml_name);
+    Py_INCREF(m->func_qualname);
+    return m->func_qualname;
 #else
     return PyString_FromString(m->func.m_ml->ml_name);
 #endif
@@ -32703,10 +31039,9 @@ static PyMethodDef __pyx_CyFunction_methods[] = {
 #else
 #define __Pyx_CyFunction_weakreflist(cyfunc) ((cyfunc)->func.m_weakreflist)
 #endif
-static PyObject *__Pyx_CyFunction_New(PyTypeObject *type, PyMethodDef *ml, int flags, PyObject* qualname,
-                                      PyObject *closure, PyObject *module, PyObject* globals, PyObject* code) {
-    __pyx_CyFunctionObject *op = PyObject_GC_New(__pyx_CyFunctionObject, type);
-    if (op == NULL)
+static PyObject *__Pyx_CyFunction_Init(__pyx_CyFunctionObject *op, PyMethodDef *ml, int flags, PyObject* qualname,
+                                       PyObject *closure, PyObject *module, PyObject* globals, PyObject* code) {
+    if (unlikely(op == NULL))
         return NULL;
     op->flags = flags;
     __Pyx_CyFunction_weakreflist(op) = NULL;
@@ -32727,12 +31062,12 @@ static PyObject *__Pyx_CyFunction_New(PyTypeObject *type, PyMethodDef *ml, int f
     Py_XINCREF(code);
     op->func_code = code;
     op->defaults_pyobjects = 0;
+    op->defaults_size = 0;
     op->defaults = NULL;
     op->defaults_tuple = NULL;
     op->defaults_kwdict = NULL;
     op->defaults_getter = NULL;
     op->func_annotations = NULL;
-    PyObject_GC_Track(op);
     return (PyObject *) op;
 }
 static int
@@ -32795,6 +31130,7 @@ static int __Pyx_CyFunction_traverse(__pyx_CyFunctionObject *m, visitproc visit,
 }
 static PyObject *__Pyx_CyFunction_descr_get(PyObject *func, PyObject *obj, PyObject *type)
 {
+#if PY_MAJOR_VERSION < 3
     __pyx_CyFunctionObject *m = (__pyx_CyFunctionObject *) func;
     if (m->flags & __Pyx_CYFUNCTION_STATICMETHOD) {
         Py_INCREF(func);
@@ -32807,6 +31143,7 @@ static PyObject *__Pyx_CyFunction_descr_get(PyObject *func, PyObject *obj, PyObj
     }
     if (obj == Py_None)
         obj = NULL;
+#endif
     return __Pyx_PyMethod_New(func, obj, type);
 }
 static PyObject*
@@ -32891,6 +31228,14 @@ static PyObject *__Pyx_CyFunction_CallAsMethod(PyObject *func, PyObject *args, P
         self = PyTuple_GetItem(args, 0);
         if (unlikely(!self)) {
             Py_DECREF(new_args);
+#if PY_MAJOR_VERSION > 2
+            PyErr_Format(PyExc_TypeError,
+                         "unbound method %.200S() needs an argument",
+                         cyfunc->func_qualname);
+#else
+            PyErr_SetString(PyExc_TypeError,
+                            "unbound method needs an argument");
+#endif
             return NULL;
         }
         result = __Pyx_CyFunction_CallMethod(func, self, new_args, kw);
@@ -32959,6 +31304,15 @@ static PyTypeObject __pyx_CyFunctionType_type = {
 #if PY_VERSION_HEX >= 0x030400a1
     0,
 #endif
+#if PY_VERSION_HEX >= 0x030800b1 && (!CYTHON_COMPILING_IN_PYPY || PYPY_VERSION_NUM >= 0x07030800)
+    0,
+#endif
+#if PY_VERSION_HEX >= 0x030800b4 && PY_VERSION_HEX < 0x03090000
+    0,
+#endif
+#if CYTHON_COMPILING_IN_PYPY && PY_VERSION_HEX >= 0x03090000
+    0,
+#endif
 };
 static int __pyx_CyFunction_init(void) {
     __pyx_CyFunctionType = __Pyx_FetchCommonType(&__pyx_CyFunctionType_type);
@@ -32974,6 +31328,7 @@ static CYTHON_INLINE void *__Pyx_CyFunction_InitDefaults(PyObject *func, size_t
         return PyErr_NoMemory();
     memset(m->defaults, 0, size);
     m->defaults_pyobjects = pyobjects;
+    m->defaults_size = size;
     return m->defaults;
 }
 static CYTHON_INLINE void __Pyx_CyFunction_SetDefaultsTuple(PyObject *func, PyObject *tuple) {
@@ -32992,6 +31347,19 @@ static CYTHON_INLINE void __Pyx_CyFunction_SetAnnotationsDict(PyObject *func, Py
     Py_INCREF(dict);
 }
 
+/* CythonFunction */
+static PyObject *__Pyx_CyFunction_New(PyMethodDef *ml, int flags, PyObject* qualname,
+                                      PyObject *closure, PyObject *module, PyObject* globals, PyObject* code) {
+    PyObject *op = __Pyx_CyFunction_Init(
+        PyObject_GC_New(__pyx_CyFunctionObject, __pyx_CyFunctionType),
+        ml, flags, qualname, closure, module, globals, code
+    );
+    if (likely(op)) {
+        PyObject_GC_Track(op);
+    }
+    return op;
+}
+
 /* PyObjectSetAttrStr */
 #if CYTHON_USE_TYPE_SLOTS
 static CYTHON_INLINE int __Pyx_PyObject_SetAttrStr(PyObject* obj, PyObject* attr_name, PyObject* value) {
@@ -33026,7 +31394,7 @@ static CYTHON_INLINE int __Pyx_PyBytes_Equals(PyObject* s1, PyObject* s2, int eq
             return (equals == Py_EQ);
         } else {
             int result;
-#if CYTHON_USE_UNICODE_INTERNALS
+#if CYTHON_USE_UNICODE_INTERNALS && (PY_VERSION_HEX < 0x030B0000)
             Py_hash_t hash1, hash2;
             hash1 = ((PyBytesObject*)s1)->ob_shash;
             hash2 = ((PyBytesObject*)s2)->ob_shash;
@@ -33217,7 +31585,7 @@ static int __Pyx_ParseOptionalKeywords(
         }
         name = first_kw_arg;
         #if PY_MAJOR_VERSION < 3
-        if (likely(PyString_CheckExact(key)) || likely(PyString_Check(key))) {
+        if (likely(PyString_Check(key))) {
             while (*name) {
                 if ((CYTHON_COMPILING_IN_PYPY || PyString_GET_SIZE(**name) == PyString_GET_SIZE(key))
                         && _PyString_Eq(**name, key)) {
@@ -33244,7 +31612,7 @@ static int __Pyx_ParseOptionalKeywords(
             while (*name) {
                 int cmp = (**name == key) ? 0 :
                 #if !CYTHON_COMPILING_IN_PYPY && PY_MAJOR_VERSION >= 3
-                    (PyUnicode_GET_SIZE(**name) != PyUnicode_GET_SIZE(key)) ? 1 :
+                    (__Pyx_PyUnicode_GET_LENGTH(**name) != __Pyx_PyUnicode_GET_LENGTH(key)) ? 1 :
                 #endif
                     PyUnicode_Compare(**name, key);
                 if (cmp < 0 && unlikely(PyErr_Occurred())) goto bad;
@@ -33260,7 +31628,7 @@ static int __Pyx_ParseOptionalKeywords(
                 while (argname != first_kw_arg) {
                     int cmp = (**argname == key) ? 0 :
                     #if !CYTHON_COMPILING_IN_PYPY && PY_MAJOR_VERSION >= 3
-                        (PyUnicode_GET_SIZE(**argname) != PyUnicode_GET_SIZE(key)) ? 1 :
+                        (__Pyx_PyUnicode_GET_LENGTH(**argname) != __Pyx_PyUnicode_GET_LENGTH(key)) ? 1 :
                     #endif
                         PyUnicode_Compare(**argname, key);
                     if (cmp < 0 && unlikely(PyErr_Occurred())) goto bad;
@@ -33301,90 +31669,30 @@ static int __Pyx_ParseOptionalKeywords(
 #if CYTHON_COMPILING_IN_CPYTHON
 static CYTHON_INLINE PyObject* __Pyx_PyObject_CallNoArg(PyObject *func) {
 #if CYTHON_FAST_PYCALL
-    if (PyFunction_Check(func)) {
-        return __Pyx_PyFunction_FastCall(func, NULL, 0);
-    }
-#endif
-#ifdef __Pyx_CyFunction_USED
-    if (likely(PyCFunction_Check(func) || __Pyx_CyFunction_Check(func)))
-#else
-    if (likely(PyCFunction_Check(func)))
-#endif
-    {
-        if (likely(PyCFunction_GET_FLAGS(func) & METH_NOARGS)) {
-            return __Pyx_PyObject_CallMethO(func, NULL);
-        }
-    }
-    return __Pyx_PyObject_Call(func, __pyx_empty_tuple, NULL);
-}
-#endif
-
-/* StringJoin */
-#if !CYTHON_COMPILING_IN_CPYTHON
-static CYTHON_INLINE PyObject* __Pyx_PyBytes_Join(PyObject* sep, PyObject* values) {
-    return PyObject_CallMethodObjArgs(sep, __pyx_n_s_join, values, NULL);
-}
-#endif
-
-/* RaiseTooManyValuesToUnpack */
-static CYTHON_INLINE void __Pyx_RaiseTooManyValuesError(Py_ssize_t expected) {
-    PyErr_Format(PyExc_ValueError,
-                 "too many values to unpack (expected %" CYTHON_FORMAT_SSIZE_T "d)", expected);
-}
-
-/* RaiseNeedMoreValuesToUnpack */
-static CYTHON_INLINE void __Pyx_RaiseNeedMoreValuesError(Py_ssize_t index) {
-    PyErr_Format(PyExc_ValueError,
-                 "need more than %" CYTHON_FORMAT_SSIZE_T "d value%.1s to unpack",
-                 index, (index == 1) ? "" : "s");
-}
-
-/* IterFinish */
-static CYTHON_INLINE int __Pyx_IterFinish(void) {
-#if CYTHON_FAST_THREAD_STATE
-    PyThreadState *tstate = __Pyx_PyThreadState_Current;
-    PyObject* exc_type = tstate->curexc_type;
-    if (unlikely(exc_type)) {
-        if (likely(__Pyx_PyErr_GivenExceptionMatches(exc_type, PyExc_StopIteration))) {
-            PyObject *exc_value, *exc_tb;
-            exc_value = tstate->curexc_value;
-            exc_tb = tstate->curexc_traceback;
-            tstate->curexc_type = 0;
-            tstate->curexc_value = 0;
-            tstate->curexc_traceback = 0;
-            Py_DECREF(exc_type);
-            Py_XDECREF(exc_value);
-            Py_XDECREF(exc_tb);
-            return 0;
-        } else {
-            return -1;
-        }
-    }
-    return 0;
-#else
-    if (unlikely(PyErr_Occurred())) {
-        if (likely(PyErr_ExceptionMatches(PyExc_StopIteration))) {
-            PyErr_Clear();
-            return 0;
-        } else {
-            return -1;
-        }
+    if (PyFunction_Check(func)) {
+        return __Pyx_PyFunction_FastCall(func, NULL, 0);
     }
-    return 0;
 #endif
+#if defined(__Pyx_CyFunction_USED) && defined(NDEBUG)
+    if (likely(PyCFunction_Check(func) || __Pyx_CyFunction_Check(func)))
+#else
+    if (likely(PyCFunction_Check(func)))
+#endif
+    {
+        if (likely(PyCFunction_GET_FLAGS(func) & METH_NOARGS)) {
+            return __Pyx_PyObject_CallMethO(func, NULL);
+        }
+    }
+    return __Pyx_PyObject_Call(func, __pyx_empty_tuple, NULL);
 }
+#endif
 
-/* UnpackItemEndCheck */
-static int __Pyx_IternextUnpackEndCheck(PyObject *retval, Py_ssize_t expected) {
-    if (unlikely(retval)) {
-        Py_DECREF(retval);
-        __Pyx_RaiseTooManyValuesError(expected);
-        return -1;
-    } else {
-        return __Pyx_IterFinish();
-    }
-    return 0;
+/* StringJoin */
+#if !CYTHON_COMPILING_IN_CPYTHON
+static CYTHON_INLINE PyObject* __Pyx_PyBytes_Join(PyObject* sep, PyObject* values) {
+    return PyObject_CallMethodObjArgs(sep, __pyx_n_s_join, values, NULL);
 }
+#endif
 
 /* UnpackUnboundCMethod */
 static int __Pyx_TryUnpackUnboundCMethod(__Pyx_CachedCFunction* target) {
@@ -33414,11 +31722,11 @@ static CYTHON_INLINE PyObject* __Pyx_CallUnboundCMethod1(__Pyx_CachedCFunction*
         if (flag == METH_O) {
             return (*(cfunc->func))(self, arg);
         } else if (PY_VERSION_HEX >= 0x030600B1 && flag == METH_FASTCALL) {
-            if (PY_VERSION_HEX >= 0x030700A0) {
+            #if PY_VERSION_HEX >= 0x030700A0
                 return (*(__Pyx_PyCFunctionFast)(void*)(PyCFunction)cfunc->func)(self, &arg, 1);
-            } else {
+            #else
                 return (*(__Pyx_PyCFunctionFastWithKeywords)(void*)(PyCFunction)cfunc->func)(self, &arg, 1, NULL);
-            }
+            #endif
         } else if (PY_VERSION_HEX >= 0x030700A0 && flag == (METH_FASTCALL | METH_KEYWORDS)) {
             return (*(__Pyx_PyCFunctionFastWithKeywords)(void*)(PyCFunction)cfunc->func)(self, &arg, 1, NULL);
         }
@@ -33458,25 +31766,39 @@ static PyObject* __Pyx__CallUnboundCMethod1(__Pyx_CachedCFunction* cfunc, PyObje
     return result;
 }
 
-/* ArgTypeTest */
-static int __Pyx__ArgTypeTest(PyObject *obj, PyTypeObject *type, const char *name, int exact)
-{
-    if (unlikely(!type)) {
-        PyErr_SetString(PyExc_SystemError, "Missing type object");
-        return 0;
-    }
-    else if (exact) {
-        #if PY_MAJOR_VERSION == 2
-        if ((type == &PyBaseString_Type) && likely(__Pyx_PyBaseString_CheckExact(obj))) return 1;
-        #endif
+/* IterFinish */
+static CYTHON_INLINE int __Pyx_IterFinish(void) {
+#if CYTHON_FAST_THREAD_STATE
+    PyThreadState *tstate = __Pyx_PyThreadState_Current;
+    PyObject* exc_type = tstate->curexc_type;
+    if (unlikely(exc_type)) {
+        if (likely(__Pyx_PyErr_GivenExceptionMatches(exc_type, PyExc_StopIteration))) {
+            PyObject *exc_value, *exc_tb;
+            exc_value = tstate->curexc_value;
+            exc_tb = tstate->curexc_traceback;
+            tstate->curexc_type = 0;
+            tstate->curexc_value = 0;
+            tstate->curexc_traceback = 0;
+            Py_DECREF(exc_type);
+            Py_XDECREF(exc_value);
+            Py_XDECREF(exc_tb);
+            return 0;
+        } else {
+            return -1;
+        }
     }
-    else {
-        if (likely(__Pyx_TypeCheck(obj, type))) return 1;
+    return 0;
+#else
+    if (unlikely(PyErr_Occurred())) {
+        if (likely(PyErr_ExceptionMatches(PyExc_StopIteration))) {
+            PyErr_Clear();
+            return 0;
+        } else {
+            return -1;
+        }
     }
-    PyErr_Format(PyExc_TypeError,
-        "Argument '%.200s' has incorrect type (expected %.200s, got %.200s)",
-        name, type->tp_name, Py_TYPE(obj)->tp_name);
     return 0;
+#endif
 }
 
 /* PyObjectGetMethod */
@@ -33591,6 +31913,29 @@ static PyObject* __Pyx_PyObject_CallMethod0(PyObject* obj, PyObject* method_name
     return result;
 }
 
+/* RaiseNeedMoreValuesToUnpack */
+static CYTHON_INLINE void __Pyx_RaiseNeedMoreValuesError(Py_ssize_t index) {
+    PyErr_Format(PyExc_ValueError,
+                 "need more than %" CYTHON_FORMAT_SSIZE_T "d value%.1s to unpack",
+                 index, (index == 1) ? "" : "s");
+}
+
+/* RaiseTooManyValuesToUnpack */
+static CYTHON_INLINE void __Pyx_RaiseTooManyValuesError(Py_ssize_t expected) {
+    PyErr_Format(PyExc_ValueError,
+                 "too many values to unpack (expected %" CYTHON_FORMAT_SSIZE_T "d)", expected);
+}
+
+/* UnpackItemEndCheck */
+static int __Pyx_IternextUnpackEndCheck(PyObject *retval, Py_ssize_t expected) {
+    if (unlikely(retval)) {
+        Py_DECREF(retval);
+        __Pyx_RaiseTooManyValuesError(expected);
+        return -1;
+    }
+    return __Pyx_IterFinish();
+}
+
 /* RaiseNoneIterError */
 static CYTHON_INLINE void __Pyx_RaiseNoneNotIterableError(void) {
     PyErr_SetString(PyExc_TypeError, "'NoneType' object is not iterable");
@@ -33772,6 +32117,92 @@ static CYTHON_INLINE int __Pyx_dict_iter_next(
     return 1;
 }
 
+/* CallUnboundCMethod2 */
+#if CYTHON_COMPILING_IN_CPYTHON && PY_VERSION_HEX >= 0x030600B1
+static CYTHON_INLINE PyObject *__Pyx_CallUnboundCMethod2(__Pyx_CachedCFunction *cfunc, PyObject *self, PyObject *arg1, PyObject *arg2) {
+    if (likely(cfunc->func)) {
+        PyObject *args[2] = {arg1, arg2};
+        if (cfunc->flag == METH_FASTCALL) {
+            #if PY_VERSION_HEX >= 0x030700A0
+            return (*(__Pyx_PyCFunctionFast)(void*)(PyCFunction)cfunc->func)(self, args, 2);
+            #else
+            return (*(__Pyx_PyCFunctionFastWithKeywords)(void*)(PyCFunction)cfunc->func)(self, args, 2, NULL);
+            #endif
+        }
+        #if PY_VERSION_HEX >= 0x030700A0
+        if (cfunc->flag == (METH_FASTCALL | METH_KEYWORDS))
+            return (*(__Pyx_PyCFunctionFastWithKeywords)(void*)(PyCFunction)cfunc->func)(self, args, 2, NULL);
+        #endif
+    }
+    return __Pyx__CallUnboundCMethod2(cfunc, self, arg1, arg2);
+}
+#endif
+static PyObject* __Pyx__CallUnboundCMethod2(__Pyx_CachedCFunction* cfunc, PyObject* self, PyObject* arg1, PyObject* arg2){
+    PyObject *args, *result = NULL;
+    if (unlikely(!cfunc->func && !cfunc->method) && unlikely(__Pyx_TryUnpackUnboundCMethod(cfunc) < 0)) return NULL;
+#if CYTHON_COMPILING_IN_CPYTHON
+    if (cfunc->func && (cfunc->flag & METH_VARARGS)) {
+        args = PyTuple_New(2);
+        if (unlikely(!args)) goto bad;
+        Py_INCREF(arg1);
+        PyTuple_SET_ITEM(args, 0, arg1);
+        Py_INCREF(arg2);
+        PyTuple_SET_ITEM(args, 1, arg2);
+        if (cfunc->flag & METH_KEYWORDS)
+            result = (*(PyCFunctionWithKeywords)(void*)(PyCFunction)cfunc->func)(self, args, NULL);
+        else
+            result = (*cfunc->func)(self, args);
+    } else {
+        args = PyTuple_New(3);
+        if (unlikely(!args)) goto bad;
+        Py_INCREF(self);
+        PyTuple_SET_ITEM(args, 0, self);
+        Py_INCREF(arg1);
+        PyTuple_SET_ITEM(args, 1, arg1);
+        Py_INCREF(arg2);
+        PyTuple_SET_ITEM(args, 2, arg2);
+        result = __Pyx_PyObject_Call(cfunc->method, args, NULL);
+    }
+#else
+    args = PyTuple_Pack(3, self, arg1, arg2);
+    if (unlikely(!args)) goto bad;
+    result = __Pyx_PyObject_Call(cfunc->method, args, NULL);
+#endif
+bad:
+    Py_XDECREF(args);
+    return result;
+}
+
+/* dict_getitem_default */
+static PyObject* __Pyx_PyDict_GetItemDefault(PyObject* d, PyObject* key, PyObject* default_value) {
+    PyObject* value;
+#if PY_MAJOR_VERSION >= 3 && !CYTHON_COMPILING_IN_PYPY
+    value = PyDict_GetItemWithError(d, key);
+    if (unlikely(!value)) {
+        if (unlikely(PyErr_Occurred()))
+            return NULL;
+        value = default_value;
+    }
+    Py_INCREF(value);
+    if ((1));
+#else
+    if (PyString_CheckExact(key) || PyUnicode_CheckExact(key) || PyInt_CheckExact(key)) {
+        value = PyDict_GetItem(d, key);
+        if (unlikely(!value)) {
+            value = default_value;
+        }
+        Py_INCREF(value);
+    }
+#endif
+    else {
+        if (default_value == Py_None)
+            value = __Pyx_CallUnboundCMethod1(&__pyx_umethod_PyDict_Type_get, d, key);
+        else
+            value = __Pyx_CallUnboundCMethod2(&__pyx_umethod_PyDict_Type_get, d, key, default_value);
+    }
+    return value;
+}
+
 /* PyObject_GenericGetAttrNoDict */
 #if CYTHON_USE_TYPE_SLOTS && CYTHON_USE_PYTYPE_LOOKUP && PY_VERSION_HEX < 0x03070000
 static PyObject *__Pyx_RaiseGenericGetAttributeError(PyTypeObject *tp, PyObject *attr_name) {
@@ -33812,6 +32243,85 @@ static CYTHON_INLINE PyObject* __Pyx_PyObject_GenericGetAttrNoDict(PyObject* obj
 }
 #endif
 
+/* TypeImport */
+#ifndef __PYX_HAVE_RT_ImportType
+#define __PYX_HAVE_RT_ImportType
+static PyTypeObject *__Pyx_ImportType(PyObject *module, const char *module_name, const char *class_name,
+    size_t size, size_t alignment, enum __Pyx_ImportType_CheckSize check_size)
+{
+    PyObject *result = 0;
+    char warning[200];
+    Py_ssize_t basicsize;
+    Py_ssize_t itemsize;
+#ifdef Py_LIMITED_API
+    PyObject *py_basicsize;
+    PyObject *py_itemsize;
+#endif
+    result = PyObject_GetAttrString(module, class_name);
+    if (!result)
+        goto bad;
+    if (!PyType_Check(result)) {
+        PyErr_Format(PyExc_TypeError,
+            "%.200s.%.200s is not a type object",
+            module_name, class_name);
+        goto bad;
+    }
+#ifndef Py_LIMITED_API
+    basicsize = ((PyTypeObject *)result)->tp_basicsize;
+    itemsize = ((PyTypeObject *)result)->tp_itemsize;
+#else
+    py_basicsize = PyObject_GetAttrString(result, "__basicsize__");
+    if (!py_basicsize)
+        goto bad;
+    basicsize = PyLong_AsSsize_t(py_basicsize);
+    Py_DECREF(py_basicsize);
+    py_basicsize = 0;
+    if (basicsize == (Py_ssize_t)-1 && PyErr_Occurred())
+        goto bad;
+    py_itemsize = PyObject_GetAttrString(result, "__itemsize__");
+    if (!py_itemsize)
+        goto bad;
+    itemsize = PyLong_AsSsize_t(py_itemsize);
+    Py_DECREF(py_itemsize);
+    py_itemsize = 0;
+    if (itemsize == (Py_ssize_t)-1 && PyErr_Occurred())
+        goto bad;
+#endif
+    if (itemsize) {
+        if (size % alignment) {
+            alignment = size % alignment;
+        }
+        if (itemsize < (Py_ssize_t)alignment)
+            itemsize = (Py_ssize_t)alignment;
+    }
+    if ((size_t)(basicsize + itemsize) < size) {
+        PyErr_Format(PyExc_ValueError,
+            "%.200s.%.200s size changed, may indicate binary incompatibility. "
+            "Expected %zd from C header, got %zd from PyObject",
+            module_name, class_name, size, basicsize);
+        goto bad;
+    }
+    if (check_size == __Pyx_ImportType_CheckSize_Error && (size_t)basicsize != size) {
+        PyErr_Format(PyExc_ValueError,
+            "%.200s.%.200s size changed, may indicate binary incompatibility. "
+            "Expected %zd from C header, got %zd from PyObject",
+            module_name, class_name, size, basicsize);
+        goto bad;
+    }
+    else if (check_size == __Pyx_ImportType_CheckSize_Warn && (size_t)basicsize > size) {
+        PyOS_snprintf(warning, sizeof(warning),
+            "%s.%s size changed, may indicate binary incompatibility. "
+            "Expected %zd from C header, got %zd from PyObject",
+            module_name, class_name, size, basicsize);
+        if (PyErr_WarnEx(NULL, warning, 0) < 0) goto bad;
+    }
+    return (PyTypeObject *)result;
+bad:
+    Py_XDECREF(result);
+    return NULL;
+}
+#endif
+
 /* Import */
 static PyObject *__Pyx_Import(PyObject *name, PyObject *from_list, int level) {
     PyObject *empty_list = 0;
@@ -33842,7 +32352,7 @@ static PyObject *__Pyx_Import(PyObject *name, PyObject *from_list, int level) {
     {
         #if PY_MAJOR_VERSION >= 3
         if (level == -1) {
-            if (strchr(__Pyx_MODULE_NAME, '.')) {
+            if ((1) && (strchr(__Pyx_MODULE_NAME, '.'))) {
                 module = PyImport_ImportModuleLevelObject(
                     name, global_dict, empty_dict, list, 1);
                 if (!module) {
@@ -33999,7 +32509,7 @@ static PyObject *__Pyx_Py3ClassCreate(PyObject *metaclass, PyObject *name, PyObj
 
 /* CLineInTraceback */
 #ifndef CYTHON_CLINE_IN_TRACEBACK
-static int __Pyx_CLineForTraceback(PyThreadState *tstate, int c_line) {
+static int __Pyx_CLineForTraceback(CYTHON_UNUSED PyThreadState *tstate, int c_line) {
     PyObject *use_cline;
     PyObject *ptype, *pvalue, *ptraceback;
 #if CYTHON_COMPILING_IN_CPYTHON
@@ -34029,7 +32539,7 @@ static int __Pyx_CLineForTraceback(PyThreadState *tstate, int c_line) {
     }
     if (!use_cline) {
         c_line = 0;
-        PyObject_SetAttr(__pyx_cython_runtime, __pyx_n_s_cline_in_traceback, Py_False);
+        (void) PyObject_SetAttr(__pyx_cython_runtime, __pyx_n_s_cline_in_traceback, Py_False);
     }
     else if (use_cline == Py_False || (use_cline != Py_True && PyObject_Not(use_cline) != 0)) {
         c_line = 0;
@@ -34103,7 +32613,7 @@ static void __pyx_insert_code_object(int code_line, PyCodeObject* code_object) {
     if (__pyx_code_cache.count == __pyx_code_cache.max_count) {
         int new_max = __pyx_code_cache.max_count + 64;
         entries = (__Pyx_CodeObjectCacheEntry*)PyMem_Realloc(
-            __pyx_code_cache.entries, (size_t)new_max*sizeof(__Pyx_CodeObjectCacheEntry));
+            __pyx_code_cache.entries, ((size_t)new_max) * sizeof(__Pyx_CodeObjectCacheEntry));
         if (unlikely(!entries)) {
             return;
         }
@@ -34123,33 +32633,40 @@ static void __pyx_insert_code_object(int code_line, PyCodeObject* code_object) {
 #include "compile.h"
 #include "frameobject.h"
 #include "traceback.h"
+#if PY_VERSION_HEX >= 0x030b00a6
+  #ifndef Py_BUILD_CORE
+    #define Py_BUILD_CORE 1
+  #endif
+  #include "internal/pycore_frame.h"
+#endif
 static PyCodeObject* __Pyx_CreateCodeObjectForTraceback(
             const char *funcname, int c_line,
             int py_line, const char *filename) {
-    PyCodeObject *py_code = 0;
-    PyObject *py_srcfile = 0;
-    PyObject *py_funcname = 0;
+    PyCodeObject *py_code = NULL;
+    PyObject *py_funcname = NULL;
     #if PY_MAJOR_VERSION < 3
+    PyObject *py_srcfile = NULL;
     py_srcfile = PyString_FromString(filename);
-    #else
-    py_srcfile = PyUnicode_FromString(filename);
-    #endif
     if (!py_srcfile) goto bad;
+    #endif
     if (c_line) {
         #if PY_MAJOR_VERSION < 3
         py_funcname = PyString_FromFormat( "%s (%s:%d)", funcname, __pyx_cfilenm, c_line);
+        if (!py_funcname) goto bad;
         #else
         py_funcname = PyUnicode_FromFormat( "%s (%s:%d)", funcname, __pyx_cfilenm, c_line);
+        if (!py_funcname) goto bad;
+        funcname = PyUnicode_AsUTF8(py_funcname);
+        if (!funcname) goto bad;
         #endif
     }
     else {
         #if PY_MAJOR_VERSION < 3
         py_funcname = PyString_FromString(funcname);
-        #else
-        py_funcname = PyUnicode_FromString(funcname);
+        if (!py_funcname) goto bad;
         #endif
     }
-    if (!py_funcname) goto bad;
+    #if PY_MAJOR_VERSION < 3
     py_code = __Pyx_PyCode_New(
         0,
         0,
@@ -34168,11 +32685,16 @@ static PyCodeObject* __Pyx_CreateCodeObjectForTraceback(
         __pyx_empty_bytes  /*PyObject *lnotab*/
     );
     Py_DECREF(py_srcfile);
-    Py_DECREF(py_funcname);
+    #else
+    py_code = PyCode_NewEmpty(filename, funcname, py_line);
+    #endif
+    Py_XDECREF(py_funcname);  // XDECREF since it's only set on Py3 if cline
     return py_code;
 bad:
-    Py_XDECREF(py_srcfile);
     Py_XDECREF(py_funcname);
+    #if PY_MAJOR_VERSION < 3
+    Py_XDECREF(py_srcfile);
+    #endif
     return NULL;
 }
 static void __Pyx_AddTraceback(const char *funcname, int c_line,
@@ -34180,14 +32702,24 @@ static void __Pyx_AddTraceback(const char *funcname, int c_line,
     PyCodeObject *py_code = 0;
     PyFrameObject *py_frame = 0;
     PyThreadState *tstate = __Pyx_PyThreadState_Current;
+    PyObject *ptype, *pvalue, *ptraceback;
     if (c_line) {
         c_line = __Pyx_CLineForTraceback(tstate, c_line);
     }
     py_code = __pyx_find_code_object(c_line ? -c_line : py_line);
     if (!py_code) {
+        __Pyx_ErrFetchInState(tstate, &ptype, &pvalue, &ptraceback);
         py_code = __Pyx_CreateCodeObjectForTraceback(
             funcname, c_line, py_line, filename);
-        if (!py_code) goto bad;
+        if (!py_code) {
+            /* If the code object creation fails, then we should clear the
+               fetched exception references and propagate the new exception */
+            Py_XDECREF(ptype);
+            Py_XDECREF(pvalue);
+            Py_XDECREF(ptraceback);
+            goto bad;
+        }
+        __Pyx_ErrRestoreInState(tstate, ptype, pvalue, ptraceback);
         __pyx_insert_code_object(c_line ? -c_line : py_line, py_code);
     }
     py_frame = PyFrame_New(
@@ -34207,90 +32739,35 @@ static void __Pyx_AddTraceback(const char *funcname, int c_line,
 /* CIntFromPyVerify */
 #define __PYX_VERIFY_RETURN_INT(target_type, func_type, func_value)\
     __PYX__VERIFY_RETURN_INT(target_type, func_type, func_value, 0)
-#define __PYX_VERIFY_RETURN_INT_EXC(target_type, func_type, func_value)\
-    __PYX__VERIFY_RETURN_INT(target_type, func_type, func_value, 1)
-#define __PYX__VERIFY_RETURN_INT(target_type, func_type, func_value, exc)\
-    {\
-        func_type value = func_value;\
-        if (sizeof(target_type) < sizeof(func_type)) {\
-            if (unlikely(value != (func_type) (target_type) value)) {\
-                func_type zero = 0;\
-                if (exc && unlikely(value == (func_type)-1 && PyErr_Occurred()))\
-                    return (target_type) -1;\
-                if (is_unsigned && unlikely(value < zero))\
-                    goto raise_neg_overflow;\
-                else\
-                    goto raise_overflow;\
-            }\
-        }\
-        return (target_type) value;\
-    }
-
-/* CIntToPy */
-static CYTHON_INLINE PyObject* __Pyx_PyInt_From_PY_LONG_LONG(PY_LONG_LONG value) {
-    const PY_LONG_LONG neg_one = (PY_LONG_LONG) ((PY_LONG_LONG) 0 - (PY_LONG_LONG) 1), const_zero = (PY_LONG_LONG) 0;
-    const int is_unsigned = neg_one > const_zero;
-    if (is_unsigned) {
-        if (sizeof(PY_LONG_LONG) < sizeof(long)) {
-            return PyInt_FromLong((long) value);
-        } else if (sizeof(PY_LONG_LONG) <= sizeof(unsigned long)) {
-            return PyLong_FromUnsignedLong((unsigned long) value);
-#ifdef HAVE_LONG_LONG
-        } else if (sizeof(PY_LONG_LONG) <= sizeof(unsigned PY_LONG_LONG)) {
-            return PyLong_FromUnsignedLongLong((unsigned PY_LONG_LONG) value);
-#endif
-        }
-    } else {
-        if (sizeof(PY_LONG_LONG) <= sizeof(long)) {
-            return PyInt_FromLong((long) value);
-#ifdef HAVE_LONG_LONG
-        } else if (sizeof(PY_LONG_LONG) <= sizeof(PY_LONG_LONG)) {
-            return PyLong_FromLongLong((PY_LONG_LONG) value);
-#endif
-        }
-    }
-    {
-        int one = 1; int little = (int)*(unsigned char *)&one;
-        unsigned char *bytes = (unsigned char *)&value;
-        return _PyLong_FromByteArray(bytes, sizeof(PY_LONG_LONG),
-                                     little, !is_unsigned);
-    }
-}
-
-/* CIntToPy */
-static CYTHON_INLINE PyObject* __Pyx_PyInt_From_long(long value) {
-    const long neg_one = (long) ((long) 0 - (long) 1), const_zero = (long) 0;
-    const int is_unsigned = neg_one > const_zero;
-    if (is_unsigned) {
-        if (sizeof(long) < sizeof(long)) {
-            return PyInt_FromLong((long) value);
-        } else if (sizeof(long) <= sizeof(unsigned long)) {
-            return PyLong_FromUnsignedLong((unsigned long) value);
-#ifdef HAVE_LONG_LONG
-        } else if (sizeof(long) <= sizeof(unsigned PY_LONG_LONG)) {
-            return PyLong_FromUnsignedLongLong((unsigned PY_LONG_LONG) value);
-#endif
-        }
-    } else {
-        if (sizeof(long) <= sizeof(long)) {
-            return PyInt_FromLong((long) value);
-#ifdef HAVE_LONG_LONG
-        } else if (sizeof(long) <= sizeof(PY_LONG_LONG)) {
-            return PyLong_FromLongLong((PY_LONG_LONG) value);
-#endif
-        }
-    }
-    {
-        int one = 1; int little = (int)*(unsigned char *)&one;
-        unsigned char *bytes = (unsigned char *)&value;
-        return _PyLong_FromByteArray(bytes, sizeof(long),
-                                     little, !is_unsigned);
+#define __PYX_VERIFY_RETURN_INT_EXC(target_type, func_type, func_value)\
+    __PYX__VERIFY_RETURN_INT(target_type, func_type, func_value, 1)
+#define __PYX__VERIFY_RETURN_INT(target_type, func_type, func_value, exc)\
+    {\
+        func_type value = func_value;\
+        if (sizeof(target_type) < sizeof(func_type)) {\
+            if (unlikely(value != (func_type) (target_type) value)) {\
+                func_type zero = 0;\
+                if (exc && unlikely(value == (func_type)-1 && PyErr_Occurred()))\
+                    return (target_type) -1;\
+                if (is_unsigned && unlikely(value < zero))\
+                    goto raise_neg_overflow;\
+                else\
+                    goto raise_overflow;\
+            }\
+        }\
+        return (target_type) value;\
     }
-}
 
 /* CIntFromPy */
 static CYTHON_INLINE PY_LONG_LONG __Pyx_PyInt_As_PY_LONG_LONG(PyObject *x) {
-    const PY_LONG_LONG neg_one = (PY_LONG_LONG) ((PY_LONG_LONG) 0 - (PY_LONG_LONG) 1), const_zero = (PY_LONG_LONG) 0;
+#ifdef __Pyx_HAS_GCC_DIAGNOSTIC
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wconversion"
+#endif
+    const PY_LONG_LONG neg_one = (PY_LONG_LONG) -1, const_zero = (PY_LONG_LONG) 0;
+#ifdef __Pyx_HAS_GCC_DIAGNOSTIC
+#pragma GCC diagnostic pop
+#endif
     const int is_unsigned = neg_one > const_zero;
 #if PY_MAJOR_VERSION < 3
     if (likely(PyInt_Check(x))) {
@@ -34477,9 +32954,92 @@ static CYTHON_INLINE PY_LONG_LONG __Pyx_PyInt_As_PY_LONG_LONG(PyObject *x) {
     return (PY_LONG_LONG) -1;
 }
 
+/* CIntToPy */
+static CYTHON_INLINE PyObject* __Pyx_PyInt_From_PY_LONG_LONG(PY_LONG_LONG value) {
+#ifdef __Pyx_HAS_GCC_DIAGNOSTIC
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wconversion"
+#endif
+    const PY_LONG_LONG neg_one = (PY_LONG_LONG) -1, const_zero = (PY_LONG_LONG) 0;
+#ifdef __Pyx_HAS_GCC_DIAGNOSTIC
+#pragma GCC diagnostic pop
+#endif
+    const int is_unsigned = neg_one > const_zero;
+    if (is_unsigned) {
+        if (sizeof(PY_LONG_LONG) < sizeof(long)) {
+            return PyInt_FromLong((long) value);
+        } else if (sizeof(PY_LONG_LONG) <= sizeof(unsigned long)) {
+            return PyLong_FromUnsignedLong((unsigned long) value);
+#ifdef HAVE_LONG_LONG
+        } else if (sizeof(PY_LONG_LONG) <= sizeof(unsigned PY_LONG_LONG)) {
+            return PyLong_FromUnsignedLongLong((unsigned PY_LONG_LONG) value);
+#endif
+        }
+    } else {
+        if (sizeof(PY_LONG_LONG) <= sizeof(long)) {
+            return PyInt_FromLong((long) value);
+#ifdef HAVE_LONG_LONG
+        } else if (sizeof(PY_LONG_LONG) <= sizeof(PY_LONG_LONG)) {
+            return PyLong_FromLongLong((PY_LONG_LONG) value);
+#endif
+        }
+    }
+    {
+        int one = 1; int little = (int)*(unsigned char *)&one;
+        unsigned char *bytes = (unsigned char *)&value;
+        return _PyLong_FromByteArray(bytes, sizeof(PY_LONG_LONG),
+                                     little, !is_unsigned);
+    }
+}
+
+/* CIntToPy */
+static CYTHON_INLINE PyObject* __Pyx_PyInt_From_long(long value) {
+#ifdef __Pyx_HAS_GCC_DIAGNOSTIC
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wconversion"
+#endif
+    const long neg_one = (long) -1, const_zero = (long) 0;
+#ifdef __Pyx_HAS_GCC_DIAGNOSTIC
+#pragma GCC diagnostic pop
+#endif
+    const int is_unsigned = neg_one > const_zero;
+    if (is_unsigned) {
+        if (sizeof(long) < sizeof(long)) {
+            return PyInt_FromLong((long) value);
+        } else if (sizeof(long) <= sizeof(unsigned long)) {
+            return PyLong_FromUnsignedLong((unsigned long) value);
+#ifdef HAVE_LONG_LONG
+        } else if (sizeof(long) <= sizeof(unsigned PY_LONG_LONG)) {
+            return PyLong_FromUnsignedLongLong((unsigned PY_LONG_LONG) value);
+#endif
+        }
+    } else {
+        if (sizeof(long) <= sizeof(long)) {
+            return PyInt_FromLong((long) value);
+#ifdef HAVE_LONG_LONG
+        } else if (sizeof(long) <= sizeof(PY_LONG_LONG)) {
+            return PyLong_FromLongLong((PY_LONG_LONG) value);
+#endif
+        }
+    }
+    {
+        int one = 1; int little = (int)*(unsigned char *)&one;
+        unsigned char *bytes = (unsigned char *)&value;
+        return _PyLong_FromByteArray(bytes, sizeof(long),
+                                     little, !is_unsigned);
+    }
+}
+
 /* CIntFromPy */
 static CYTHON_INLINE long __Pyx_PyInt_As_long(PyObject *x) {
-    const long neg_one = (long) ((long) 0 - (long) 1), const_zero = (long) 0;
+#ifdef __Pyx_HAS_GCC_DIAGNOSTIC
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wconversion"
+#endif
+    const long neg_one = (long) -1, const_zero = (long) 0;
+#ifdef __Pyx_HAS_GCC_DIAGNOSTIC
+#pragma GCC diagnostic pop
+#endif
     const int is_unsigned = neg_one > const_zero;
 #if PY_MAJOR_VERSION < 3
     if (likely(PyInt_Check(x))) {
@@ -34666,9 +33226,54 @@ static CYTHON_INLINE long __Pyx_PyInt_As_long(PyObject *x) {
     return (long) -1;
 }
 
+/* CIntToPy */
+static CYTHON_INLINE PyObject* __Pyx_PyInt_From_char(char value) {
+#ifdef __Pyx_HAS_GCC_DIAGNOSTIC
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wconversion"
+#endif
+    const char neg_one = (char) -1, const_zero = (char) 0;
+#ifdef __Pyx_HAS_GCC_DIAGNOSTIC
+#pragma GCC diagnostic pop
+#endif
+    const int is_unsigned = neg_one > const_zero;
+    if (is_unsigned) {
+        if (sizeof(char) < sizeof(long)) {
+            return PyInt_FromLong((long) value);
+        } else if (sizeof(char) <= sizeof(unsigned long)) {
+            return PyLong_FromUnsignedLong((unsigned long) value);
+#ifdef HAVE_LONG_LONG
+        } else if (sizeof(char) <= sizeof(unsigned PY_LONG_LONG)) {
+            return PyLong_FromUnsignedLongLong((unsigned PY_LONG_LONG) value);
+#endif
+        }
+    } else {
+        if (sizeof(char) <= sizeof(long)) {
+            return PyInt_FromLong((long) value);
+#ifdef HAVE_LONG_LONG
+        } else if (sizeof(char) <= sizeof(PY_LONG_LONG)) {
+            return PyLong_FromLongLong((PY_LONG_LONG) value);
+#endif
+        }
+    }
+    {
+        int one = 1; int little = (int)*(unsigned char *)&one;
+        unsigned char *bytes = (unsigned char *)&value;
+        return _PyLong_FromByteArray(bytes, sizeof(char),
+                                     little, !is_unsigned);
+    }
+}
+
 /* CIntFromPy */
 static CYTHON_INLINE int __Pyx_PyInt_As_int(PyObject *x) {
-    const int neg_one = (int) ((int) 0 - (int) 1), const_zero = (int) 0;
+#ifdef __Pyx_HAS_GCC_DIAGNOSTIC
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wconversion"
+#endif
+    const int neg_one = (int) -1, const_zero = (int) 0;
+#ifdef __Pyx_HAS_GCC_DIAGNOSTIC
+#pragma GCC diagnostic pop
+#endif
     const int is_unsigned = neg_one > const_zero;
 #if PY_MAJOR_VERSION < 3
     if (likely(PyInt_Check(x))) {
@@ -34857,7 +33462,14 @@ static CYTHON_INLINE int __Pyx_PyInt_As_int(PyObject *x) {
 
 /* CIntFromPy */
 static CYTHON_INLINE char __Pyx_PyInt_As_char(PyObject *x) {
-    const char neg_one = (char) ((char) 0 - (char) 1), const_zero = (char) 0;
+#ifdef __Pyx_HAS_GCC_DIAGNOSTIC
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wconversion"
+#endif
+    const char neg_one = (char) -1, const_zero = (char) 0;
+#ifdef __Pyx_HAS_GCC_DIAGNOSTIC
+#pragma GCC diagnostic pop
+#endif
     const int is_unsigned = neg_one > const_zero;
 #if PY_MAJOR_VERSION < 3
     if (likely(PyInt_Check(x))) {
@@ -35044,6 +33656,202 @@ static CYTHON_INLINE char __Pyx_PyInt_As_char(PyObject *x) {
     return (char) -1;
 }
 
+/* CIntFromPy */
+static CYTHON_INLINE unsigned int __Pyx_PyInt_As_unsigned_int(PyObject *x) {
+#ifdef __Pyx_HAS_GCC_DIAGNOSTIC
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wconversion"
+#endif
+    const unsigned int neg_one = (unsigned int) -1, const_zero = (unsigned int) 0;
+#ifdef __Pyx_HAS_GCC_DIAGNOSTIC
+#pragma GCC diagnostic pop
+#endif
+    const int is_unsigned = neg_one > const_zero;
+#if PY_MAJOR_VERSION < 3
+    if (likely(PyInt_Check(x))) {
+        if (sizeof(unsigned int) < sizeof(long)) {
+            __PYX_VERIFY_RETURN_INT(unsigned int, long, PyInt_AS_LONG(x))
+        } else {
+            long val = PyInt_AS_LONG(x);
+            if (is_unsigned && unlikely(val < 0)) {
+                goto raise_neg_overflow;
+            }
+            return (unsigned int) val;
+        }
+    } else
+#endif
+    if (likely(PyLong_Check(x))) {
+        if (is_unsigned) {
+#if CYTHON_USE_PYLONG_INTERNALS
+            const digit* digits = ((PyLongObject*)x)->ob_digit;
+            switch (Py_SIZE(x)) {
+                case  0: return (unsigned int) 0;
+                case  1: __PYX_VERIFY_RETURN_INT(unsigned int, digit, digits[0])
+                case 2:
+                    if (8 * sizeof(unsigned int) > 1 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(unsigned int, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(unsigned int) >= 2 * PyLong_SHIFT) {
+                            return (unsigned int) (((((unsigned int)digits[1]) << PyLong_SHIFT) | (unsigned int)digits[0]));
+                        }
+                    }
+                    break;
+                case 3:
+                    if (8 * sizeof(unsigned int) > 2 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(unsigned int, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(unsigned int) >= 3 * PyLong_SHIFT) {
+                            return (unsigned int) (((((((unsigned int)digits[2]) << PyLong_SHIFT) | (unsigned int)digits[1]) << PyLong_SHIFT) | (unsigned int)digits[0]));
+                        }
+                    }
+                    break;
+                case 4:
+                    if (8 * sizeof(unsigned int) > 3 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(unsigned int, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(unsigned int) >= 4 * PyLong_SHIFT) {
+                            return (unsigned int) (((((((((unsigned int)digits[3]) << PyLong_SHIFT) | (unsigned int)digits[2]) << PyLong_SHIFT) | (unsigned int)digits[1]) << PyLong_SHIFT) | (unsigned int)digits[0]));
+                        }
+                    }
+                    break;
+            }
+#endif
+#if CYTHON_COMPILING_IN_CPYTHON
+            if (unlikely(Py_SIZE(x) < 0)) {
+                goto raise_neg_overflow;
+            }
+#else
+            {
+                int result = PyObject_RichCompareBool(x, Py_False, Py_LT);
+                if (unlikely(result < 0))
+                    return (unsigned int) -1;
+                if (unlikely(result == 1))
+                    goto raise_neg_overflow;
+            }
+#endif
+            if (sizeof(unsigned int) <= sizeof(unsigned long)) {
+                __PYX_VERIFY_RETURN_INT_EXC(unsigned int, unsigned long, PyLong_AsUnsignedLong(x))
+#ifdef HAVE_LONG_LONG
+            } else if (sizeof(unsigned int) <= sizeof(unsigned PY_LONG_LONG)) {
+                __PYX_VERIFY_RETURN_INT_EXC(unsigned int, unsigned PY_LONG_LONG, PyLong_AsUnsignedLongLong(x))
+#endif
+            }
+        } else {
+#if CYTHON_USE_PYLONG_INTERNALS
+            const digit* digits = ((PyLongObject*)x)->ob_digit;
+            switch (Py_SIZE(x)) {
+                case  0: return (unsigned int) 0;
+                case -1: __PYX_VERIFY_RETURN_INT(unsigned int, sdigit, (sdigit) (-(sdigit)digits[0]))
+                case  1: __PYX_VERIFY_RETURN_INT(unsigned int,  digit, +digits[0])
+                case -2:
+                    if (8 * sizeof(unsigned int) - 1 > 1 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(unsigned int, long, -(long) (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(unsigned int) - 1 > 2 * PyLong_SHIFT) {
+                            return (unsigned int) (((unsigned int)-1)*(((((unsigned int)digits[1]) << PyLong_SHIFT) | (unsigned int)digits[0])));
+                        }
+                    }
+                    break;
+                case 2:
+                    if (8 * sizeof(unsigned int) > 1 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(unsigned int, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(unsigned int) - 1 > 2 * PyLong_SHIFT) {
+                            return (unsigned int) ((((((unsigned int)digits[1]) << PyLong_SHIFT) | (unsigned int)digits[0])));
+                        }
+                    }
+                    break;
+                case -3:
+                    if (8 * sizeof(unsigned int) - 1 > 2 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(unsigned int, long, -(long) (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(unsigned int) - 1 > 3 * PyLong_SHIFT) {
+                            return (unsigned int) (((unsigned int)-1)*(((((((unsigned int)digits[2]) << PyLong_SHIFT) | (unsigned int)digits[1]) << PyLong_SHIFT) | (unsigned int)digits[0])));
+                        }
+                    }
+                    break;
+                case 3:
+                    if (8 * sizeof(unsigned int) > 2 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(unsigned int, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(unsigned int) - 1 > 3 * PyLong_SHIFT) {
+                            return (unsigned int) ((((((((unsigned int)digits[2]) << PyLong_SHIFT) | (unsigned int)digits[1]) << PyLong_SHIFT) | (unsigned int)digits[0])));
+                        }
+                    }
+                    break;
+                case -4:
+                    if (8 * sizeof(unsigned int) - 1 > 3 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(unsigned int, long, -(long) (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(unsigned int) - 1 > 4 * PyLong_SHIFT) {
+                            return (unsigned int) (((unsigned int)-1)*(((((((((unsigned int)digits[3]) << PyLong_SHIFT) | (unsigned int)digits[2]) << PyLong_SHIFT) | (unsigned int)digits[1]) << PyLong_SHIFT) | (unsigned int)digits[0])));
+                        }
+                    }
+                    break;
+                case 4:
+                    if (8 * sizeof(unsigned int) > 3 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(unsigned int, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(unsigned int) - 1 > 4 * PyLong_SHIFT) {
+                            return (unsigned int) ((((((((((unsigned int)digits[3]) << PyLong_SHIFT) | (unsigned int)digits[2]) << PyLong_SHIFT) | (unsigned int)digits[1]) << PyLong_SHIFT) | (unsigned int)digits[0])));
+                        }
+                    }
+                    break;
+            }
+#endif
+            if (sizeof(unsigned int) <= sizeof(long)) {
+                __PYX_VERIFY_RETURN_INT_EXC(unsigned int, long, PyLong_AsLong(x))
+#ifdef HAVE_LONG_LONG
+            } else if (sizeof(unsigned int) <= sizeof(PY_LONG_LONG)) {
+                __PYX_VERIFY_RETURN_INT_EXC(unsigned int, PY_LONG_LONG, PyLong_AsLongLong(x))
+#endif
+            }
+        }
+        {
+#if CYTHON_COMPILING_IN_PYPY && !defined(_PyLong_AsByteArray)
+            PyErr_SetString(PyExc_RuntimeError,
+                            "_PyLong_AsByteArray() not available in PyPy, cannot convert large numbers");
+#else
+            unsigned int val;
+            PyObject *v = __Pyx_PyNumber_IntOrLong(x);
+ #if PY_MAJOR_VERSION < 3
+            if (likely(v) && !PyLong_Check(v)) {
+                PyObject *tmp = v;
+                v = PyNumber_Long(tmp);
+                Py_DECREF(tmp);
+            }
+ #endif
+            if (likely(v)) {
+                int one = 1; int is_little = (int)*(unsigned char *)&one;
+                unsigned char *bytes = (unsigned char *)&val;
+                int ret = _PyLong_AsByteArray((PyLongObject *)v,
+                                              bytes, sizeof(val),
+                                              is_little, !is_unsigned);
+                Py_DECREF(v);
+                if (likely(!ret))
+                    return val;
+            }
+#endif
+            return (unsigned int) -1;
+        }
+    } else {
+        unsigned int val;
+        PyObject *tmp = __Pyx_PyNumber_IntOrLong(x);
+        if (!tmp) return (unsigned int) -1;
+        val = __Pyx_PyInt_As_unsigned_int(tmp);
+        Py_DECREF(tmp);
+        return val;
+    }
+raise_overflow:
+    PyErr_SetString(PyExc_OverflowError,
+        "value too large to convert to unsigned int");
+    return (unsigned int) -1;
+raise_neg_overflow:
+    PyErr_SetString(PyExc_OverflowError,
+        "can't convert negative value to unsigned int");
+    return (unsigned int) -1;
+}
+
 /* FastTypeChecks */
 #if CYTHON_COMPILING_IN_CPYTHON
 static int __Pyx_InBases(PyTypeObject *a, PyTypeObject *b) {
@@ -35146,11 +33954,33 @@ static CYTHON_INLINE int __Pyx_PyErr_GivenExceptionMatches2(PyObject *err, PyObj
 
 /* CheckBinaryVersion */
 static int __Pyx_check_binary_version(void) {
-    char ctversion[4], rtversion[4];
-    PyOS_snprintf(ctversion, 4, "%d.%d", PY_MAJOR_VERSION, PY_MINOR_VERSION);
-    PyOS_snprintf(rtversion, 4, "%s", Py_GetVersion());
-    if (ctversion[0] != rtversion[0] || ctversion[2] != rtversion[2]) {
+    char ctversion[5];
+    int same=1, i, found_dot;
+    const char* rt_from_call = Py_GetVersion();
+    PyOS_snprintf(ctversion, 5, "%d.%d", PY_MAJOR_VERSION, PY_MINOR_VERSION);
+    found_dot = 0;
+    for (i = 0; i < 4; i++) {
+        if (!ctversion[i]) {
+            same = (rt_from_call[i] < '0' || rt_from_call[i] > '9');
+            break;
+        }
+        if (rt_from_call[i] != ctversion[i]) {
+            same = 0;
+            break;
+        }
+    }
+    if (!same) {
+        char rtversion[5] = {'\0'};
         char message[200];
+        for (i=0; i<4; ++i) {
+            if (rt_from_call[i] == '.') {
+                if (found_dot) break;
+                found_dot = 1;
+            } else if (rt_from_call[i] < '0' || rt_from_call[i] > '9') {
+                break;
+            }
+            rtversion[i] = rt_from_call[i];
+        }
         PyOS_snprintf(message, sizeof(message),
                       "compiletime version %s of module '%.100s' "
                       "does not match runtime version %s",
@@ -35408,6 +34238,23 @@ static CYTHON_INLINE Py_ssize_t __Pyx_PyIndex_AsSsize_t(PyObject* b) {
   Py_DECREF(x);
   return ival;
 }
+static CYTHON_INLINE Py_hash_t __Pyx_PyIndex_AsHash_t(PyObject* o) {
+  if (sizeof(Py_hash_t) == sizeof(Py_ssize_t)) {
+    return (Py_hash_t) __Pyx_PyIndex_AsSsize_t(o);
+#if PY_MAJOR_VERSION < 3
+  } else if (likely(PyInt_CheckExact(o))) {
+    return PyInt_AS_LONG(o);
+#endif
+  } else {
+    Py_ssize_t ival;
+    PyObject *x;
+    x = PyNumber_Index(o);
+    if (!x) return -1;
+    ival = PyInt_AsLong(x);
+    Py_DECREF(x);
+    return ival;
+  }
+}
 static CYTHON_INLINE PyObject * __Pyx_PyBool_FromLong(long b) {
   return b ? __Pyx_NewRef(Py_True) : __Pyx_NewRef(Py_False);
 }
diff --git a/src/spavro/fast_binary.pyx b/src/spavro/fast_binary.pyx
index f16f6e0..76faef7 100644
--- a/src/spavro/fast_binary.pyx
+++ b/src/spavro/fast_binary.pyx
@@ -5,6 +5,9 @@ The main edge this code has is that it parses the schema only once and creates
 a reader/writer call tree from the schema shape. All reads and writes then
 no longer consult the schema saving lookups.'''
 
+cimport cpython.array as array
+from libc.string cimport memcpy
+
 import six
 INT_MIN_VALUE = -(1 << 31)
 INT_MAX_VALUE = (1 << 31) - 1
@@ -321,20 +324,136 @@ cdef void write_double(outbuf, double datum):
     outbuf.write((<char *>&datum)[:sizeof(double)])
 
 
-cdef void write_null(outbuf, datum):
-    pass
+cdef write_boolean(outbuf, char datum):
+    """A boolean is written as a single byte whose value is either 0 (false) or
+    1 (true)."""
+    cdef char x = 1 if datum else 0
+    outbuf.write((<char *>&x)[:sizeof(char)])
+
+
+cdef void write_int_to_array(array.array outbuf, long long signed_datum):
+    """int and long values are written using variable-length, zig-zag coding.
+    """
+    cdef:
+        unsigned long long datum
+        char temp_datum
+        size_t size = len(outbuf)
+    datum = (signed_datum << 1) ^ (signed_datum >> 63)
+    while datum > 127:
+        temp_datum = (datum & 0x7f) | 0x80
+        array.resize_smart(outbuf, size + 1)
+        outbuf.data.as_uchars[size] = temp_datum
+        size += 1
+        datum >>= 7
+    array.resize_smart(outbuf, size + 1)
+    outbuf.data.as_uchars[size] = datum
+
+cdef void write_long_to_array(array.array outbuf, long long signed_datum):
+    """int and long values are written using variable-length, zig-zag coding.
+    """
+    cdef:
+        unsigned long long datum
+        char temp_datum
+        size_t size = len(outbuf)
+    datum = (signed_datum << 1) ^ (signed_datum >> 63)
+    while datum > 127:
+        temp_datum = (datum & 0x7f) | 0x80
+        array.resize_smart(outbuf, size + 1)
+        outbuf.data.as_uchars[size] = temp_datum
+        size += 1
+        datum >>= 7
+    array.resize_smart(outbuf, size + 1)
+    outbuf.data.as_uchars[size] = datum
+
+
+cdef void write_bytes_to_array(array.array outbuf, datum):
+    """
+    Bytes are encoded as a long followed by that many bytes of data.
+    """
+    cdef:
+        size_t datum_size = len(datum)
+        size_t size = 0
+    write_long_to_array(outbuf, datum_size)
+    size = len(outbuf)
+    array.resize_smart(outbuf, size + datum_size)
+    memcpy(outbuf.data.as_chars + size, <const char*>datum, datum_size)
 
 
-cdef void write_fixed(outbuf, datum):
+cdef void write_utf8_to_array(array.array outbuf, datum):
+    """
+    Unicode are encoded as write_bytes_to_array of the utf-8 encoded data.
+    """
+    write_bytes_to_array(outbuf, datum.encode("utf-8"))
+
+
+cdef void write_float_to_array(array.array outbuf, float datum):
+    """
+    A float is written as 4 bytes.
+    The float is converted into a 32-bit integer using a method equivalent to
+    Java's floatToIntBits and then encoded in little-endian format.
+    """
+    cdef:
+        size_t datum_size = sizeof(float)
+        size_t size = len(outbuf)
+    array.resize_smart(outbuf, size + datum_size)
+    memcpy(outbuf.data.as_chars + size, <const char*>&datum, datum_size)
+
+cdef void write_double_to_array(array.array outbuf, double datum):
+    """
+    A double is written as 8 bytes.
+    The double is converted into a 64-bit integer using a method equivalent to
+    Java's doubleToLongBits and then encoded in little-endian format.
+    """
+    cdef:
+        size_t datum_size = sizeof(double)
+        size_t size = len(outbuf)
+    array.resize_smart(outbuf, size + datum_size)
+    memcpy(outbuf.data.as_chars + size, <const char*>&datum, datum_size)
+
+
+cdef void write_fixed_to_array(array.array outbuf, datum):
     """A fixed writer writes out exactly the bytes up to a count"""
-    outbuf.write(datum)
+    cdef:
+        size_t datum_size = len(datum)
+        size_t size = len(outbuf)
+    array.resize_smart(outbuf, size + datum_size)
+    memcpy(outbuf.data.as_chars + size, <const char*>datum, datum_size)
 
 
-cdef write_boolean(outbuf, char datum):
+cdef void write_boolean_to_array(array.array outbuf, char datum):
     """A boolean is written as a single byte whose value is either 0 (false) or
     1 (true)."""
-    cdef char x = 1 if datum else 0
-    outbuf.write((<char *>&x)[:sizeof(char)])
+    cdef:
+        char x = 1 if datum else 0
+        size_t size = len(outbuf)
+    array.resize_smart(outbuf, size + 1)
+    outbuf.data.as_uchars[size] = x
+
+
+cdef void write_enum_to_array(array.array outbuf, char datum, list symbols):
+    cdef int enum_index = symbols.index(datum)
+    write_int_to_array(outbuf, enum_index)
+
+
+cdef void write_array_to_array(array.array outbuf, list datum, list item_writer):
+    cdef:
+        size_t item_count = len(datum)
+    if item_count > 0:
+        write_long_to_array(outbuf, item_count)
+    for item in datum:
+        execute(outbuf, item, item_writer)
+    write_long_to_array(outbuf, 0)
+
+
+cdef void write_map_to_array(array.array outbuf, dict datum, list map_value_writer):
+    cdef:
+        size_t item_count = len(datum)
+    if item_count > 0:
+        write_long_to_array(outbuf, item_count)
+    for key, val in datum.iteritems():
+        write_utf8_to_array(outbuf, key)
+        execute(outbuf, val, map_value_writer)
+    write_long_to_array(outbuf, 0)
 
 
 avro_to_py = {
@@ -551,133 +670,60 @@ def make_union_writer(union_schema):
 
         writer_lookup = complex_writer_lookup
 
-    def write_union(outbuf, datum):
-        idx, data_writer = writer_lookup(datum)
-        write_long(outbuf, idx)
-        data_writer(outbuf, datum)
-    write_union.__reduce__ = lambda: (make_union_writer, (union_schema,))
-    return write_union
-
-def make_enum_writer(schema):
-    cdef list symbols = schema['symbols']
-
-    # the datum can be str or unicode?
-    def write_enum(outbuf, basestring datum):
-        cdef int enum_index = symbols.index(datum)
-        write_int(outbuf, enum_index)
-    write_enum.__reduce__ = lambda: (make_enum_writer, (schema,))
-    return write_enum
-
+    return [0, writer_lookup]
 
 def make_record_writer(schema):
     cdef list fields = [WriteField(field['name'], get_writer(field['type'])) for field in schema['fields']]
+    return [1, fields]
 
-    def write_record(outbuf, datum):
-        for field in fields:
-            try:
-                field.writer(outbuf, datum.get(field.name))
-            except TypeError as e:
-                raise TypeError("Error writing record schema at fieldname: '{}', datum: '{}'".format(field.name, repr(datum.get(field.name))))
-    write_record.__reduce__ = lambda: (make_record_writer, (schema,))
-    return write_record
-
-
-def make_array_writer(schema):
-    item_writer = get_writer(schema['items'])
-
-    def write_array(outbuf, list datum):
-        cdef long item_count = len(datum)
-        if item_count > 0:
-            write_long(outbuf, item_count)
-        for item in datum:
-            item_writer(outbuf, item)
-        write_long(outbuf, 0)
-    write_array.__reduce__ = lambda: (make_array_writer, (schema,))
-    return write_array
-
-
-def make_map_writer(schema):
-    map_value_writer = get_writer(schema['values'])
-
-    def write_map(outbuf, datum):
-        cdef long item_count = len(datum)
-        if item_count > 0:
-            write_long(outbuf, item_count)
-        for key, val in datum.iteritems():
-            write_utf8(outbuf, key)
-            map_value_writer(outbuf, val)
-        write_long(outbuf, 0)
-    write_map.__reduce__ = lambda: (make_map_writer, (schema,))
-    return write_map
+def make_null_writer(schema):
+    return [2]
 
+def make_string_writer(schema):
+    return [3]
 
 def make_boolean_writer(schema):
     '''Create a boolean writer, adds a validation step before the actual
     write function'''
-    def checked_boolean_writer(outbuf, datum):
-        if not isinstance(datum, bool):
-            raise TypeError("{} - Not a boolean value. Schema: {}".format(repr(datum), schema))
-        write_boolean(outbuf, datum)
-    return checked_boolean_writer
-
+    return [4]
 
-def make_fixed_writer(schema):
-    '''A writer that must write X bytes defined by the schema'''
-    cdef long size = schema['size']
-    # note: not a char* because those are null terminated and fixed
-    # has no such limitation
-    def checked_write_fixed(outbuf, datum):
-        if len(datum) != size:
-            raise TypeError("{} - Size Mismatch ({}) for Fixed data. Schema: {}".format(repr(datum), len(datum), schema))
-        write_fixed(outbuf, datum)
-    return checked_write_fixed
-
-
-def make_int_writer(schema):
-    '''Create a int writer, adds a validation step before the actual
-    write function to make sure the int value doesn't overflow'''
-    def checked_int_write(outbuf, datum):
-        if not isinstance(datum, six.integer_types):
-            raise TypeError("Schema violation, {} is not an example of schema {}".format(datum, schema))
-        if not INT_MIN_VALUE <= datum <= INT_MAX_VALUE:
-            raise TypeError("Schema violation, value overflow. {} can't be stored in schema: {}".format(datum, schema))
-        write_long(outbuf, datum)
-    return checked_int_write
+def make_double_writer(schema):
+    return [5]
 
+def make_float_writer(schema):
+    return [6]
 
 def make_long_writer(schema):
     '''Create a long writer, adds a validation step before the actual
     write function to make sure the long value doesn't overflow'''
-    def checked_long_write(outbuf, datum):
-        if not (isinstance(datum, six.integer_types)
-                        and LONG_MIN_VALUE <= datum <= LONG_MAX_VALUE):
-            raise TypeError("{} - Non integer value or overflow. Schema: {}".format(repr(datum), schema))
-        write_long(outbuf, datum)
-    return checked_long_write
-
-
-def make_string_writer(schema):
-    def checked_string_writer(outbuf, datum):
-        if not isinstance(datum, six.string_types):
-            raise TypeError("{} - is not a string value. Schema: {}".format(repr(datum), schema))
-        write_utf8(outbuf, datum)
-    return checked_string_writer
-
+    return [7]
 
 def make_byte_writer(schema):
-    return write_bytes
+    return [8]
 
+def make_int_writer(schema):
+    '''Create a int writer, adds a validation step before the actual
+    write function to make sure the int value doesn't overflow'''
+    return [9]
 
-def make_float_writer(schema):
-    return write_float
-
+def make_fixed_writer(schema):
+    '''A writer that must write X bytes defined by the schema'''
+    cdef long size = schema['size']
+    # note: not a char* because those are null terminated and fixed
+    # has no such limitation
+    return [10, size]
 
-def make_double_writer(schema):
-    return write_double
+def make_enum_writer(schema):
+    cdef list symbols = schema['symbols']
+    return [11, symbols]
 
+def make_array_writer(schema):
+    cdef list item_writer = get_writer(schema['items'])
+    return [12, item_writer]
 
-def make_null_writer(schema):
-    return write_null
+def make_map_writer(schema):
+    cdef list map_value_writer = get_writer(schema['values'])
+    return [13, map_value_writer]
 
 
 # writer
@@ -704,9 +750,6 @@ class WriterPlaceholder(object):
     def __init__(self):
         self.writer = None
 
-    def __call__(self, fo, val):
-        return self.writer(fo, val)
-
 
 def get_writer(schema):
     cdef unicode schema_type = get_type(schema)
@@ -733,7 +776,7 @@ def get_writer(schema):
     except KeyError:
         # lookup the schema by unique previously defined name,
         # i.e. a custom type
-        writer = schema_cache[schema_type]
+        writer = schema_cache[schema_type].writer
 
     return writer
 
@@ -851,3 +894,79 @@ class FastBinaryDecoder(object):
 
     def skip(self, n):
         self.reader.seek(self.reader.tell() + n)
+
+
+cdef void write_union_to_array(array.array outbuf, datum, writer_lookup):
+    idx, data_writer = writer_lookup(datum)  # TODO: cdef int, list = f()?
+    write_long_to_array(outbuf, idx)
+    execute(outbuf, datum, data_writer)
+
+
+cdef void write_record_to_array(array.array outbuf, dict datum, list fields):
+    for field in fields:
+        try:
+            execute(outbuf, datum.get(field.name), field.writer)
+        except TypeError as e:
+            raise TypeError("Error writing record schema at fieldname: '{}', datum: '{}'".format(field.name, repr(datum.get(field.name))))
+
+
+cdef void execute(array.array outbuf, datum, list writer):
+    cdef unsigned int writer_f = writer[0]
+
+    if writer_f == 0:  # make_union_writer
+        write_union_to_array(outbuf, datum, writer[1])
+
+    elif writer_f == 1:  # make_record_writer
+        write_record_to_array(outbuf, datum, writer[1])
+
+    # skip make_null_writer
+
+    elif writer_f == 3:  # make_string_writer
+        if not isinstance(datum, six.string_types):
+            raise TypeError("{} - is not a string value.".format(repr(datum)))
+        write_utf8_to_array(outbuf, datum)
+
+    elif writer_f == 4:  # make_boolean_writer
+        if not isinstance(datum, bool):
+            raise TypeError("{} - Not a boolean value.".format(repr(datum)))
+        write_boolean_to_array(outbuf, datum)
+
+    elif writer_f == 5:  # make_double_writer
+        write_double_to_array(outbuf, datum)
+
+    elif writer_f == 6:  # make_float_writer
+        write_float_to_array(outbuf, datum)
+
+    elif writer_f == 7:  # make_long_writer
+        if not (isinstance(datum, six.integer_types)
+                        and LONG_MIN_VALUE <= datum <= LONG_MAX_VALUE):
+            raise TypeError("{} - Non integer value or overflow.".format(repr(datum)))
+        write_long_to_array(outbuf, datum)
+
+    elif writer_f == 8:  # make_byte_writer
+        write_bytes_to_array(outbuf, datum)
+
+    elif writer_f == 9:  # make_int_writer
+        if not isinstance(datum, six.integer_types):
+            raise TypeError("Schema violation, {} is not an example of integer".format(datum))
+        if not INT_MIN_VALUE <= datum <= INT_MAX_VALUE:
+            raise TypeError("Schema violation, value overflow. {} can't be stored in schema".format(datum))
+        write_long_to_array(outbuf, datum)
+
+    elif writer_f == 10:  # make_fixed_writer
+        write_fixed_to_array(outbuf, datum)
+
+    elif writer_f == 11:  # make_enum_writer
+        write_enum_to_array(outbuf, datum, writer[1])
+
+    elif writer_f == 12:  # make_union_writer
+        write_array_to_array(outbuf, datum, writer[1])
+
+    elif writer_f == 13:  # make_union_writer
+        write_map_to_array(outbuf, datum, writer[1])
+
+
+def write(iobuffer, datum, writer, schema):
+    cdef array.array outbuf = array.array('B', [])
+    execute(outbuf, datum, writer)
+    iobuffer.write(outbuf.data.as_chars[:len(outbuf)])
diff --git a/src/spavro/io.py b/src/spavro/io.py
index 466da21..50cea41 100755
--- a/src/spavro/io.py
+++ b/src/spavro/io.py
@@ -143,7 +143,7 @@ def validate(expected_schema, datum):
 log = logging.getLogger(__name__)
 use_fast = False
 try:
-    from spavro.fast_binary import get_reader, get_writer
+    from spavro.fast_binary import get_reader, get_writer, write
     from spavro.fast_binary import FastBinaryEncoder, FastBinaryDecoder
     use_fast = True
 except ImportError:
@@ -817,12 +817,13 @@ def writers_schema(self, parsed_writer_schema):
         if parsed_writer_schema:
             # to_json is a terrible method name for something
             # that returns a python dict! :/
-            self.write_datum = get_writer(parsed_writer_schema.to_json())
+            self.schema = parsed_writer_schema.to_json()
+            self.write_datum = get_writer(self.schema)
 
     def write(self, datum, encoder):
         # validate datum
         try:
-            self.write_datum(encoder.writer, datum)
+            write(encoder.writer, datum, self.write_datum, self.schema)
         except TypeError as ex:
             log.error(self.write_datum)
             log.exception("type error")