diff options
Diffstat (limited to 'synapse/util/caches/deferred_cache.py')
| -rw-r--r-- | synapse/util/caches/deferred_cache.py | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/synapse/util/caches/deferred_cache.py b/synapse/util/caches/deferred_cache.py index 1adc92eb90..dd392cf694 100644 --- a/synapse/util/caches/deferred_cache.py +++ b/synapse/util/caches/deferred_cache.py @@ -283,7 +283,9 @@ class DeferredCache(Generic[KT, VT]): # we return a new Deferred which will be called before any subsequent observers. return observable.observe() - def prefill(self, key: KT, value: VT, callback: Callable[[], None] = None): + def prefill( + self, key: KT, value: VT, callback: Optional[Callable[[], None]] = None + ): callbacks = [callback] if callback else [] self.cache.set(key, value, callbacks=callbacks) |