content: from core.models import ObjectType
  from netbox.api.fields import ContentTypeField, SerializedPKRelatedField
  from netbox.api.serializers import ValidatedModelSerializer
  from users.models import Group, ObjectPermission, User
  from .nested import NestedGroupSerializer, NestedUserSerializer
  
  __all__ = (
      'ObjectPermissionSerializer',
  )
  
  
  class ObjectPermissionSerializer(ValidatedModelSerializer):
      object_types = ContentTypeField(
          queryset=ObjectType.objects.all(),
          many=True
      )
      groups = SerializedPKRelatedField(
          queryset=Group.objects.all(),
          serializer=NestedGroupSerializer,
          nested=True,
          required=False,
          many=True
      )
      users = SerializedPKRelatedField(
          queryset=User.objects.all(),
          serializer=NestedUserSerializer,
          nested=True,
          required=False,
          many=True
      )
  
      class Meta:
          model = ObjectPermission
          fields = (
              'id', 'url', 'display_url', 'display', 'name', 'description', 'enabled', 'object_types', 'actions',
              'constraints', 'groups', 'users',
          )
          brief_fields = (
              'id', 'url', 'display', 'name', 'description', 'enabled', 'object_types', 'actions',
          )
  