diff --git a/fauna/http/http_client.py b/fauna/http/http_client.py
index d4b0e10b..205525f4 100644
--- a/fauna/http/http_client.py
+++ b/fauna/http/http_client.py
@@ -67,7 +67,7 @@ def stream(
       url: str,
       headers: Mapping[str, str],
       data: Mapping[str, Any],
-  ) -> HTTPResponse:
+  ) -> Iterator[Any]:
     pass
 
   @abc.abstractmethod
diff --git a/fauna/query/models.py b/fauna/query/models.py
index bfc99852..bca1a2a4 100644
--- a/fauna/query/models.py
+++ b/fauna/query/models.py
@@ -30,7 +30,7 @@ def __eq__(self, other):
         other, Page) and self.data == other.data and self.after == other.after
 
   def __hash__(self):
-    hash((type(self), self.data, self.after))
+    return hash((type(self), self.data, self.after))
 
   def __ne__(self, other):
     return not self.__eq__(other)
@@ -56,7 +56,7 @@ def __eq__(self, other):
     return isinstance(other, Module) and str(self) == str(other)
 
   def __hash__(self):
-    hash(self.name)
+    return hash(self.name)
 
 
 class BaseReference:
diff --git a/tests/integration/test_client_with_query_limits.py b/tests/integration/test_client_with_query_limits.py
index f5ce09d8..0d95948a 100644
--- a/tests/integration/test_client_with_query_limits.py
+++ b/tests/integration/test_client_with_query_limits.py
@@ -1,5 +1,6 @@
 from multiprocessing.pool import ThreadPool
 import os
+from typing import Optional
 
 import pytest
 
@@ -9,7 +10,7 @@
 from fauna.errors.errors import ThrottlingError
 
 
-def query_collection(client: Client) -> QuerySuccess:
+def query_collection(client: Client) -> Optional[QuerySuccess]:
   coll_name = os.environ.get("QUERY_LIMITS_COLL") or ""
   try:
     return client.query(fql("${coll}.all().paginate(50)", coll=fql(coll_name)))