1 files changed, 16 insertions, 1 deletions
diff --git a/synapse/storage/databases/main/openid.py b/synapse/storage/databases/main/openid.py
index 2aac64901b..a46685219f 100644
--- a/synapse/storage/databases/main/openid.py
+++ b/synapse/storage/databases/main/openid.py
@@ -1,6 +1,21 @@
+# Copyright 2019-2021 The Matrix.org Foundation C.I.C.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 from typing import Optional
 
 from synapse.storage._base import SQLBaseStore
+from synapse.storage.database import LoggingTransaction
 
 
 class OpenIdStore(SQLBaseStore):
@@ -20,7 +35,7 @@ class OpenIdStore(SQLBaseStore):
     async def get_user_id_for_open_id_token(
         self, token: str, ts_now_ms: int
     ) -> Optional[str]:
-        def get_user_id_for_token_txn(txn):
+        def get_user_id_for_token_txn(txn: LoggingTransaction) -> Optional[str]:
             sql = (
                 "SELECT user_id FROM open_id_tokens"
                 " WHERE token = ? AND ? <= ts_valid_until_ms"