1 files changed, 3 insertions, 3 deletions
diff --git a/synapse/storage/util/sequence.py b/synapse/storage/util/sequence.py
index bb33e04fb1..75268cbe15 100644
--- a/synapse/storage/util/sequence.py
+++ b/synapse/storage/util/sequence.py
@@ -81,7 +81,7 @@ class SequenceGenerator(metaclass=abc.ABCMeta):
         id_column: str,
         stream_name: Optional[str] = None,
         positive: bool = True,
-    ):
+    ) -> None:
         """Should be called during start up to test that the current value of
         the sequence is greater than or equal to the maximum ID in the table.
 
@@ -122,7 +122,7 @@ class PostgresSequenceGenerator(SequenceGenerator):
         id_column: str,
         stream_name: Optional[str] = None,
         positive: bool = True,
-    ):
+    ) -> None:
         """See SequenceGenerator.check_consistency for docstring."""
 
         txn = db_conn.cursor(txn_name="sequence.check_consistency")
@@ -244,7 +244,7 @@ class LocalSequenceGenerator(SequenceGenerator):
         id_column: str,
         stream_name: Optional[str] = None,
         positive: bool = True,
-    ):
+    ) -> None:
         # There is nothing to do for in memory sequences
         pass