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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _is_expired_token_response(cls, response):
 """ Determine whether the given response indicates that the token is expired. :param response: The response object. :return: True if the response indicates that the token is expired. """


        EXPIRED_MESSAGE = "Expired oauth2 access token"
        INVALID_MESSAGE = "Invalid oauth2 access token"

        if response.status_code == 400:
            try:
                body = response.json()
                if str(body.get('error_description')) in [EXPIRED_MESSAGE, INVALID_MESSAGE]:
                    return True
            except:
                pass
        return False