type fixes

aiomultiprocess/core.py

@@ -80,12 +80,12 @@ class Process:
     def __init__(
         self,
         group: None = None,
-        target: Callable = None,
-        name: str = None,
-        args: Sequence[Any] = None,
-        kwargs: Dict[str, Any] = None,
+        target: Optional[Callable] = None,
+        name: Optional[str] = None,
+        args: Optional[Sequence[Any]] = None,
+        kwargs: Optional[Dict[str, Any]] = None,
         *,
-        daemon: bool = None,
+        daemon: Optional[bool] = None,
         initializer: Optional[Callable] = None,
         initargs: Sequence[Any] = (),
         loop_initializer: Optional[Callable] = None,
@@ -152,7 +152,7 @@ def start(self) -> None:
         """Start the child process."""
         return self.aio_process.start()
 
-    async def join(self, timeout: int = None) -> None:
+    async def join(self, timeout: Optional[int] = None) -> None:
         """Wait for the process to finish execution without blocking the main thread."""
         if not self.is_alive() and self.exitcode is None:
             raise ValueError("must start process before joining it")
@@ -227,7 +227,7 @@ def run_async(unit: Unit) -> R:
             unit.namespace.result = e
             raise
 
-    async def join(self, timeout: int = None) -> Any:
+    async def join(self, timeout: Optional[int] = None) -> Any:
         """Wait for the worker to finish, and return the final result."""
         await super().join(timeout)
         return self.result