Update packages/google-cloud-firestore/google/cloud/firestore_v1/collection.py

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

Author: daniel-sanche

packages/google-cloud-firestore/google/cloud/firestore_v1/collection.py

@@ -149,7 +149,7 @@ def document(self, document_id: Union[str, None] = None) -> "DocumentReference":
             :class:~google.cloud.firestore_v1.document.DocumentReference:
             The child document.
         """
-        doc = super(CollectionReference, self).document(document_id)
+        doc = super().document(document_id)
         return cast("DocumentReference", doc)
 
     def list_documents(