new_contents: import omgorm as orm
  
  
  class TestField:
  
      def test_get_value(self, SessionSubclass):
  
          class Post(orm.Resource, session_cls=SessionSubclass):
              title = orm.json.Field()
  
          post = Post.wrap_api_obj({'title': 'hello'})
  
          assert post.title == 'hello'
  
subject: add test for JSON field