From 54dc2bed3deceb62caaad5a700772f29bdc4d562 Mon Sep 17 00:00:00 2001
From: Eric Eastwood <erice@element.io>
Date: Wed, 25 Mar 2026 18:09:57 -0500
Subject: [PATCH] Use less restrictive `Sequence`

---
 synapse/handlers/pagination.py                  | 8 ++++----
 synapse/storage/databases/main/events_worker.py | 5 +++--
 2 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/synapse/handlers/pagination.py b/synapse/handlers/pagination.py
index 90ee4bc466..a55dcc78b0 100644
--- a/synapse/handlers/pagination.py
+++ b/synapse/handlers/pagination.py
@@ -19,7 +19,7 @@
 #
 #
 import logging
-from typing import TYPE_CHECKING, cast
+from typing import TYPE_CHECKING, Sequence, cast
 
 import attr
 
@@ -80,7 +80,7 @@ class GetMessagesResult:
     Everything needed to serialize a `/messages` response.
     """
 
-    messages_chunk: list[EventBase]
+    messages_chunk: Sequence[EventBase]
     """
     A list of room events.
 
@@ -93,7 +93,7 @@ class GetMessagesResult:
     available. Clients should continue to paginate until no `end_token` property is returned.
     """
 
-    gaps: list[EventGapEntry]
+    gaps: Sequence[EventGapEntry]
     """
     A list of gaps in the `messages_chunk`
     """
@@ -105,7 +105,7 @@ class GetMessagesResult:
     If an event doesn't have any bundled aggregations, it may not appear in the map.
     """
 
-    state: list[EventBase] | None
+    state: Sequence[EventBase] | None
     """
     A list of state events relevant to showing the chunk. For example, if
     lazy_load_members is enabled in the filter then this may contain the membership
diff --git a/synapse/storage/databases/main/events_worker.py b/synapse/storage/databases/main/events_worker.py
index 05374cb2c6..53ed54dc24 100644
--- a/synapse/storage/databases/main/events_worker.py
+++ b/synapse/storage/databases/main/events_worker.py
@@ -31,6 +31,7 @@ from typing import (
     Literal,
     Mapping,
     MutableMapping,
+    Sequence,
     cast,
     overload,
 )
@@ -2494,8 +2495,8 @@ class EventsWorkerStore(SQLBaseStore):
         )
 
     async def get_events_next_to_gaps(
-        self, events: list[EventBase], direction: Direction
-    ) -> list[EventGapEntry]:
+        self, events: Sequence[EventBase], direction: Direction
+    ) -> Sequence[EventGapEntry]:
         """
         Find all of the events that have gaps next to them.