text: import graphene
  from graphene import relay
  
  from ...menu import models
  from ..core.types.common import CountableDjangoObjectType
  
  
  class Menu(CountableDjangoObjectType):
      class Meta:
          description = """Represents a single menu - an object that is used
          to help navigate through the store."""
          interfaces = [relay.Node]
          exclude_fields = ['json_content']
          filter_fields = {}
          model = models.Menu
  
      def resolve_items(self, info, **kwargs):
          return self.items.filter(level=0).select_related(
              'category', 'collection', 'page')
  
  
  class MenuItem(CountableDjangoObjectType):
      url = graphene.String(description='URL to the menu item.')
  
      class Meta:
          description = """Represents a single item of the related menu.
          Can store categories, collection or pages."""
          interfaces = [relay.Node]
          exclude_fields = ['sort_order', 'lft', 'rght', 'tree_id']
          filter_fields = {}
          model = models.MenuItem
  
      def resolve_url(self, info):
          return self.get_url()
  