Setting pagination_class on a ViewSet doesn't work and i don't understand why

[l0ggik]

Hi,

i am really confused because i try to set a pagination class on a single ViewSet.
If i set the Pagination class globally in the settings everything works perfectly fine but as soon as i try to set the Pagination class i get an AttributeError: 'LimitOffsetPagination' object has no attribute 'count'
These are the lines i change to produce the error:

In views:

class SomeViewSet(mixins.RetrieveModelMixin, viewsets.GenericViewSet):
    pagination_class = LimitOffsetPagination
    page_size = 10

In settings:

REST_FRAMEWORK = {
  'DEFAULT_PAGINATION_CLASS': 'rest_framework.pagination.LimitOffsetPagination'
  'PAGE_SIZE': 10
}

As far as i understand the documentation i can set the Pagination class, and if i set the Pagination class global and then set pagination_class=None it also works. What am i missing? I hope someone can explain to me where my mistake is.