Add extra args/kwargs to authtoken's views (#3718)

rest_framework/authtoken/views.py

@@ -12,7 +12,7 @@ class ObtainAuthToken(APIView):
     renderer_classes = (renderers.JSONRenderer,)
     serializer_class = AuthTokenSerializer
 
-    def post(self, request):
+    def post(self, request, *args, **kwargs):
         serializer = self.serializer_class(data=request.data)
         serializer.is_valid(raise_exception=True)
         user = serializer.validated_data['user']