code: def DeregisterOutput(cls, output_class):
      
      output_class_name = output_class.NAME.lower()
  
      if output_class_name in cls._disabled_output_classes:
        class_dict = cls._disabled_output_classes
      else:
        class_dict = cls._output_classes
  
      if output_class_name not in class_dict:
        raise KeyError(
            'Output class not set for name: {0:s}.'.format(
                output_class.NAME))
  
      del class_dict[output_class_name]
docs: Deregisters an output class.
  
      The output classes are identified based on their NAME attribute.
  
      Args:
        output_class (type): output module class.
  
      Raises:
        KeyError: if output class is not set for the corresponding data type.