code: def get_spec(self):
          
          if _mac_ver() >= (10, 14):
              return self.vggish_model.get_spec()
          else:
              vggish_model_file = VGGish()
              coreml_model_path = vggish_model_file.get_model_path(format='coreml')
              return MLModel(coreml_model_path).get_spec()
docs: Return the Core ML spec