              ]
  
          class APIRoot(views.APIView):
              _ignore_model_permissions = True
  
              def get(self, request, *args, **kwargs):
                  if request.accepted_renderer.media_type in schema_media_types:
                      # Return a schema response.
                      schema = schema_generator.get_schema(request)
                      if schema is None:
 
</s> remove     def get_api_root_view(self):
 </s> add     def get_api_root_view(self, schema_urls=None):
            renderer_classes = view_renderers
              ]
  
          class APIRoot(views.APIView):
              _ignore_model_permissions = True
            renderer_classes = view_renderers
  
              def get(self, request, *args, **kwargs):
                  if request.accepted_renderer.media_type in schema_media_types:
                      # Return a schema response.
                      schema = schema_generator.get_schema(request)
                      if schema is None:
keep keep keep add keep keep keep keep keep keep
 Schemas & client libraries. (#4179)

* Added schema generation support.
* New tutorial section.
* API guide on schema generation.
* Topic guide on API clients. 
rest_framework/routers.py