text: from canvasxpress.data.convert import CXDictConvertable
  
  
  class TestableDictConvertable(CXDictConvertable):
  
      def render_to_dict(self) -> dict:
          return super().render_to_dict()
  
  
  def test_CXDictConvertable_render_to_dict():
      candidate: CXDictConvertable = TestableDictConvertable()
      assert candidate.render_to_dict() is None
  