Convert additional databases to async/await part 2 (#8200)

1 files changed, 3 insertions, 10 deletions

diff --git a/synapse/handlers/message.py b/synapse/handlers/message.py
index 9d0c38f4df..72bb638167 100644
--- a/synapse/handlers/message.py
+++ b/synapse/handlers/message.py
@@ -49,14 +49,7 @@ from synapse.metrics.background_process_metrics import run_as_background_process
 from synapse.replication.http.send_event import ReplicationSendEventRestServlet
 from synapse.storage.databases.main.events_worker import EventRedactBehaviour
 from synapse.storage.state import StateFilter
-from synapse.types import (
-    Collection,
-    Requester,
-    RoomAlias,
-    StreamToken,
-    UserID,
-    create_requester,
-)
+from synapse.types import Requester, RoomAlias, StreamToken, UserID, create_requester
 from synapse.util import json_decoder
 from synapse.util.async_helpers import Linearizer
 from synapse.util.frozenutils import frozendict_json_encoder
@@ -446,7 +439,7 @@ class EventCreationHandler(object):
         event_dict: dict,
         token_id: Optional[str] = None,
         txn_id: Optional[str] = None,
-        prev_event_ids: Optional[Collection[str]] = None,
+        prev_event_ids: Optional[List[str]] = None,
         require_consent: bool = True,
     ) -> Tuple[EventBase, EventContext]:
         """
@@ -786,7 +779,7 @@ class EventCreationHandler(object):
         self,
         builder: EventBuilder,
         requester: Optional[Requester] = None,
-        prev_event_ids: Optional[Collection[str]] = None,
+        prev_event_ids: Optional[List[str]] = None,
     ) -> Tuple[EventBase, EventContext]:
         """Create a new event for a local client