fix:proper variable

cunla · cunla · commit e26a976ca7ed · 2023-10-21T16:24:29.000-04:00
diff --git a/fakeredis/commands_mixins/server_mixin.py b/fakeredis/commands_mixins/server_mixin.py
@@ -7,7 +7,7 @@
 from fakeredis._commands import command, DbIndex
 from fakeredis._helpers import OK, SimpleError, casematch, BGSAVE_STARTED, Database
 
-_COMMAND_INFO: Dict[bytes, List[Any]] = None
+_COMMAND_INFO: Optional[Dict[bytes, List[Any]]] = None
 
 
 def convert_obj(obj: Any) -> Any:
