Hi

I'm trying to figure out how to put links on objects to actions with this extension.
With DRF without any other extensions I'm able to use HyperlinkedIdentityField in the serializer to add the link to a view as can be seen in the following code and screenshot of output json.

from rest_framework.viewsets import ModelViewSetfrom rest_framework.relations import HyperlinkedIdentityFieldfrom rest_framework.serializers import HyperlinkedModelSerializerclass ActivityListSet(ModelViewSet):    queryset = Activity.objects.all()    serializer_class = ActivitySerializer    @action(detail=True)    def geojson(self, request, pk=None):        return Response({"a": "test"})class ActivitySerializer(HyperlinkedModelSerializer):    geo_json = HyperlinkedIdentityField(        view_name="activity-geojson"    )    class Meta:        model = Activity        fields = [            "self",            "status",            "error",            "started_at",            "completed_at",            "geo_json"        ]

However once switching over to use the DRF Json API equivalent (HyperlinkedIndentityField does not seem to exist) I'm getting the following error:
type object 'Activity' has no attribute 'geo_json'

I've searched through the issues in the project as well as the documentation, but I'm unable to find out why this does not work with this extension. DRF also has anexample with a similar use case as mine, so it seems like I'm usingHyperlinkedIdentityField as intended

Would greatly appreciate if anyone can help me figure out how to solve this issue