diff --git a/ws/server/ws_server_multi_user.py b/ws/server/ws_server_multi_user.py
index 65ab795..2348995 100644
--- a/ws/server/ws_server_multi_user.py
+++ b/ws/server/ws_server_multi_user.py
@@ -1,20 +1,9 @@
 import asyncio
 from ws.server.ws_server import WsServer
 from ws.user import User, UserSet, update
-import abc
 from ws.connection import IConnection
 
 
-class IWsServer:
-	@abc.abstractmethod
-	def on_recv(self, data, loop):
-		pass
-
-	@abc.abstractmethod
-	def on_send(self, loop):
-		pass
-
-
 class WsServerMultiUser(WsServer):
 	def __init__(self, loop=None, listener: IConnection = None):
 		WsServer.__init__(self, loop)