diff --git a/bfxapi/websocket/BfxWebsocketClient.py b/bfxapi/websocket/BfxWebsocketClient.py
index 3fa2281..0884c6f 100644
--- a/bfxapi/websocket/BfxWebsocketClient.py
+++ b/bfxapi/websocket/BfxWebsocketClient.py
@@ -4,7 +4,7 @@ from enum import Enum
 
 from pyee.asyncio import AsyncIOEventEmitter
 
-from .typings import Inputs
+from .typings import Inputs, Tuple, Union
 from .handlers import Channels, PublicChannelsHandler, AuthenticatedChannelsHandler
 from .exceptions import ConnectionNotOpen, TooManySubscriptions, WebsocketAuthenticationRequired, InvalidAuthenticationCredentials, EventNotSupported, OutdatedClientVersion
 
@@ -234,6 +234,9 @@ class _BfxWebsocketInputs(object):
     async def order_cancel(self, data: Inputs.Order.Cancel):
         await self.__handle_websocket_input("oc", data)
 
+    async def order_multiple_operations(self, *args: Tuple[str, Union[Inputs.Order.New, Inputs.Order.Update, Inputs.Order.Cancel]]):
+        await self.__handle_websocket_input("ox_multi", args)
+
     async def offer_new(self, data: Inputs.Offer.New):
         await self.__handle_websocket_input("fon", data)
 
diff --git a/bfxapi/websocket/typings.py b/bfxapi/websocket/typings.py
index 8bd5dde..4a3b918 100644
--- a/bfxapi/websocket/typings.py
+++ b/bfxapi/websocket/typings.py
@@ -2,7 +2,7 @@ from decimal import Decimal
 
 from datetime import datetime
 
-from typing import Type, List, Dict, TypedDict, Union, Optional, Any
+from typing import Type, Tuple, List, Dict, TypedDict, Union, Optional, Any
 
 int16 = int32 = int45 = int64 = int