Add some type hints to datastore. (#12255)

1 files changed, 2 insertions, 1 deletions

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

index a698d10cc5..7f3d190e94 100644
--- a/synapse/storage/databases/main/registration.py
+++ b/synapse/storage/databases/main/registration.py
@@ -22,6 +22,7 @@ import attr
 
 from synapse.api.constants import UserTypes
 from synapse.api.errors import Codes, StoreError, SynapseError, ThreepidValidationError
+from synapse.config.homeserver import HomeServerConfig
 from synapse.metrics.background_process_metrics import wrap_as_background_process
 from synapse.storage.database import (
     DatabasePool,
@@ -123,7 +124,7 @@ class RegistrationWorkerStore(CacheInvalidationWorkerStore):
     ):
         super().__init__(database, db_conn, hs)
 
-        self.config = hs.config
+        self.config: HomeServerConfig = hs.config
 
         # Note: we don't check this sequence for consistency as we'd have to
         # call `find_max_generated_user_id_localpart` each time, which is