1 files changed, 11 insertions, 3 deletions
diff --git a/tests/storage/test__base.py b/tests/storage/test__base.py
index 4899cd5c36..366398e39d 100644
--- a/tests/storage/test__base.py
+++ b/tests/storage/test__base.py
@@ -14,12 +14,18 @@
 # limitations under the License.
 
 import secrets
+from typing import Any, Dict, Generator, List, Tuple
+
+from twisted.test.proto_helpers import MemoryReactor
+
+from synapse.server import HomeServer
+from synapse.util import Clock
 
 from tests import unittest
 
 
 class UpsertManyTests(unittest.HomeserverTestCase):
-    def prepare(self, reactor, clock, hs):
+    def prepare(self, reactor: MemoryReactor, clock: Clock, hs: HomeServer) -> None:
         self.storage = hs.get_datastores().main
 
         self.table_name = "table_" + secrets.token_hex(6)
@@ -40,11 +46,13 @@ class UpsertManyTests(unittest.HomeserverTestCase):
             )
         )
 
-    def _dump_to_tuple(self, res):
+    def _dump_to_tuple(
+        self, res: List[Dict[str, Any]]
+    ) -> Generator[Tuple[int, str, str], None, None]:
         for i in res:
             yield (i["id"], i["username"], i["value"])
 
-    def test_upsert_many(self):
+    def test_upsert_many(self) -> None:
         """
         Upsert_many will perform the upsert operation across a batch of data.
         """