1 files changed, 2 insertions, 2 deletions
diff --git a/synapse/event_auth.py b/synapse/event_auth.py
index c831d9f73c..afc2bc8267 100644
--- a/synapse/event_auth.py
+++ b/synapse/event_auth.py
@@ -14,7 +14,7 @@
 # limitations under the License.
 
 import logging
-from typing import List, Optional, Set, Tuple
+from typing import Any, Dict, List, Optional, Set, Tuple
 
 from canonicaljson import encode_canonical_json
 from signedjson.key import decode_verify_key_bytes
@@ -688,7 +688,7 @@ def _verify_third_party_invite(event: EventBase, auth_events: StateMap[EventBase
     return False
 
 
-def get_public_keys(invite_event):
+def get_public_keys(invite_event: EventBase) -> List[Dict[str, Any]]:
     public_keys = []
     if "public_key" in invite_event.content:
         o = {"public_key": invite_event.content["public_key"]}