Add `StreamKeyType` class and replace string literals with constants (#12567)

1 files changed, 3 insertions, 3 deletions

diff --git a/synapse/handlers/presence.py b/synapse/handlers/presence.py

index 268481ec19..dd84e6c88b 100644
--- a/synapse/handlers/presence.py
+++ b/synapse/handlers/presence.py
@@ -66,7 +66,7 @@ from synapse.replication.tcp.commands import ClearUserSyncsCommand
 from synapse.replication.tcp.streams import PresenceFederationStream, PresenceStream
 from synapse.storage.databases.main import DataStore
 from synapse.streams import EventSource
-from synapse.types import JsonDict, UserID, get_domain_from_id
+from synapse.types import JsonDict, StreamKeyType, UserID, get_domain_from_id
 from synapse.util.async_helpers import Linearizer
 from synapse.util.caches.descriptors import _CacheContext, cached
 from synapse.util.metrics import Measure
@@ -522,7 +522,7 @@ class WorkerPresenceHandler(BasePresenceHandler):
         room_ids_to_states, users_to_states = parties
 
         self.notifier.on_new_event(
-            "presence_key",
+            StreamKeyType.PRESENCE,
             stream_id,
             rooms=room_ids_to_states.keys(),
             users=users_to_states.keys(),
@@ -1145,7 +1145,7 @@ class PresenceHandler(BasePresenceHandler):
         room_ids_to_states, users_to_states = parties
 
         self.notifier.on_new_event(
-            "presence_key",
+            StreamKeyType.PRESENCE,
             stream_id,
             rooms=room_ids_to_states.keys(),
             users=[UserID.from_string(u) for u in users_to_states],