diff --git a/src/caselawclient/identifier_resolution.py b/src/caselawclient/identifier_resolution.py
index dc432c79..afa70d51 100644
--- a/src/caselawclient/identifier_resolution.py
+++ b/src/caselawclient/identifier_resolution.py
@@ -5,7 +5,28 @@
 from caselawclient.xquery_type_dicts import MarkLogicDocumentURIString
 
 
+class IdentifierResolutions(list["IdentifierResolution"]):
+    """
+    A list of candidate MarkLogic documents which correspond to a Public UI uri
+
+    MarkLogic returns a list of dictionaries; IdentifierResolution handles a single dictionary
+    which corresponds to a single identifier to MarkLogic document mapping.
+
+    see `xquery/resolve_from_identifier.xqy` and `resolve_from_identifier` in `Client.py`
+    """
+
+    @staticmethod
+    def from_marklogic_output(table: list[str]) -> "IdentifierResolutions":
+        return IdentifierResolutions(list(IdentifierResolution.from_marklogic_output(row) for row in table))
+
+    def published(self) -> "IdentifierResolutions":
+        "Filter the list so that only published documents are returned"
+        return IdentifierResolutions(list(x for x in self if x.document_published))
+
+
 class IdentifierResolution(NamedTuple):
+    """A single response from MarkLogic about a single identifier / document mapping"""
+
     identifier_uuid: str
     document_uri: MarkLogicDocumentURIString
     identifier_slug: DocumentURIString
@@ -20,12 +41,3 @@ def from_marklogic_output(raw_row: str) -> "IdentifierResolution":
             identifier_slug=DocumentURIString(row["documents.compiled_url_slugs.identifier_slug"]),
             document_published=row["documents.compiled_url_slugs.document_published"] == "true",
         )
-
-
-class IdentifierResolutions(list[IdentifierResolution]):
-    @staticmethod
-    def from_marklogic_output(table: list[str]) -> "IdentifierResolutions":
-        return IdentifierResolutions(list(IdentifierResolution.from_marklogic_output(row) for row in table))
-
-    def published(self) -> "IdentifierResolutions":
-        return IdentifierResolutions(list(x for x in self if x.document_published))