fix linter error

Stephan Meier · Stephan Meier · commit 359a74128601 · 2022-02-03T17:09:41.000+01:00
diff --git a/aioredis/client.py b/aioredis/client.py
@@ -74,7 +74,7 @@
 AnyKeyT = TypeVar("AnyKeyT", bytes, str, memoryview)
 AnyFieldT = TypeVar("AnyFieldT", bytes, str, memoryview)
 AnyChannelT = ChannelT
-PubSubHandler = Callable[[Dict[str, str]], None]
+PubSubHandler = Callable[[Dict[str, str]], Awaitable[None]]
 
 SYM_EMPTY = b""
 EMPTY_RESPONSE = "EMPTY_RESPONSE"
