Fix more typing failures

src/documents/permissions.py

@@ -1,3 +1,5 @@
+from typing import Any
+
 from django.contrib.auth.models import Group
 from django.contrib.auth.models import Permission
 from django.contrib.auth.models import User
@@ -199,12 +201,12 @@ def get_document_count_filter_for_user(user):
 
 
 def annotate_document_count_for_related_queryset(
-    queryset,
+    queryset: QuerySet[Any],
-    through_model,
+    through_model: Any,
     related_object_field: str,
     target_field: str = "document_id",
-    user=None,
+    user: User | None = None,
-):
+) -> QuerySet[Any]:
     """
     Annotate a queryset with permissions-aware document counts using a subquery
     against a relation table.
@@ -234,11 +236,11 @@ def annotate_document_count_for_related_queryset(
 
 
 def get_objects_for_user_owner_aware(
-    user,
+    user: User | None,
-    perms,
+    perms: str | list[str],
-    Model,
+    Model: Any,
     *,
-    include_deleted=False,
+    include_deleted: bool = False,
 ) -> QuerySet:
     """
     Returns objects the user owns, are unowned, or has explicit perms.
@@ -314,7 +316,7 @@ class AcknowledgeTasksPermissions(BasePermission):
         "POST": ["documents.change_paperlesstask"],
     }
 
-    def has_permission(self, request, view):
+    def has_permission(self, request: Any, view: Any) -> bool:
         if not request.user or not request.user.is_authenticated:  # pragma: no cover
             return False
 

src/documents/serialisers.py

@@ -2952,7 +2952,7 @@ class TrashSerializer(SerializerWithPerms):
         write_only=True,
     )
 
-    def validate_documents(self, documents):
+    def validate_documents(self, documents: list[int]) -> list[int]:
         count = Document.deleted_objects.filter(id__in=documents).count()
         if not count == len(documents):
             raise serializers.ValidationError(

src/documents/views.py

@@ -395,7 +395,7 @@ class PermissionsAwareDocumentCountMixin(BulkPermissionMixin, PassUserMixin):
     """
 
     # Default is simple relation path, override for through-table/count specialization.
-    document_count_through = None
+    document_count_through: type[Model] | None = None
     document_count_source_field: str | None = None
 
     def _get_document_count_source_field(self) -> str: