def METHOD_NAME(self, words, results):
    # Call the `process_recognition' callback, if one has been defined.
    # Return True if grammar rule processing should go ahead.
    func = getattr(self.grammar, "process_recognition", None)
    if func:
        result = self._process_grammar_callback(func, words=words,
                                                results=results)
        return bool(result)
    return None