Add some type hints to datastore. (#12255)

1 files changed, 1 insertions, 1 deletions

diff --git a/synapse/storage/databases/main/stats.py b/synapse/storage/databases/main/stats.py

index 427ae1f649..b95dbef678 100644
--- a/synapse/storage/databases/main/stats.py
+++ b/synapse/storage/databases/main/stats.py
@@ -108,7 +108,7 @@ class StatsStore(StateDeltasStore):
     ):
         super().__init__(database, db_conn, hs)
 
-        self.server_name = hs.hostname
+        self.server_name: str = hs.hostname
         self.clock = self.hs.get_clock()
         self.stats_enabled = hs.config.stats.stats_enabled