Fix #143

Author: karakoo

src/graia/application/event/lifecycle.py

@@ -1,6 +1,7 @@
 from typing import Any
 import typing
-from graia.broadcast.entities.event import Dispatchable, BaseDispatcher
+from graia.broadcast.entities.event import Dispatchable
+from graia.broadcast.entities.dispatcher import BaseDispatcher
 from graia.broadcast.interfaces.dispatcher import DispatcherInterface
 
 if typing.TYPE_CHECKING: