text: from person.models import Person, Post
  from graphene import ObjectType, Node, Schema
  # from graphene_django.fields import DjangoConnectionField
  from graphene_django.types import DjangoObjectType
  from graphene_django.filter import DjangoFilterConnectionField
  
  class PersonNode(DjangoObjectType):
  
      class Meta:
          model = Person
          interfaces = (Node, )
          filter_fields = ['name', 'posts']
  
  
  class PostNode(DjangoObjectType):
  
      class Meta:
          model = Post
          interfaces = (Node, )
          filter_fields = {
              'name': ['exact', 'icontains', 'istartswith'],
              'person': ['exact'],
              'person__name': ['exact'],
          }
  
  class Query(ObjectType):
      person = Node.Field(PersonNode)
      all_persons = DjangoFilterConnectionField(PersonNode)
  
      post = Node.Field(PostNode)
      all_posts = DjangoFilterConnectionField(PostNode)
  
  schema = Schema(query = Query)
  