Remove `synapse.types.Collection` (#9856)

This is no longer required, since we have dropped support for Python 3.5.

1 files changed, 2 insertions, 7 deletions

diff --git a/synapse/notifier.py b/synapse/notifier.py

index d5ab77058d..b9531007e2 100644
--- a/synapse/notifier.py
+++ b/synapse/notifier.py
@@ -17,6 +17,7 @@ from collections import namedtuple
 from typing import (
     Awaitable,
     Callable,
+    Collection,
     Dict,
     Iterable,
     List,
@@ -42,13 +43,7 @@ from synapse.logging.opentracing import log_kv, start_active_span
 from synapse.logging.utils import log_function
 from synapse.metrics import LaterGauge
 from synapse.streams.config import PaginationConfig
-from synapse.types import (
-    Collection,
-    PersistedEventPosition,
-    RoomStreamToken,
-    StreamToken,
-    UserID,
-)
+from synapse.types import PersistedEventPosition, RoomStreamToken, StreamToken, UserID
 from synapse.util.async_helpers import ObservableDeferred, timeout_deferred
 from synapse.util.metrics import Measure
 from synapse.visibility import filter_events_for_client