'Request' object has no attribute 'accepted_renderer'

[Ola]

Hello

I am facing error 'Request' object has no attribute 'accepted_renderer' when
I am trying to customize renderer_classes in GenericViewSet. Ideally if
that would be


class CustomJSONRenderer(renderers.JSONRenderer):
media_type = 'application/ld+json'
format = 'ldjson'

class MyViewSet(mixins.RetrieveModelMixin,
mixins.ListModelMixin,
viewsets.GenericViewSet):

renderer_classes =
list(settings.REST_FRAMEWORK['DEFAULT_RENDERER_CLASSES']) +
['myapp.renderers.CustomJSONRenderer',]


Do you know by any chance what may be wrong?
All works fine if I add custom render to settings

Thanks
Ola