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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 auth_request_handler(self, callback):
 """Specifies the authentication response handler function. :param callable callback: the auth request handler function .. deprecated """

        warnings.warn("This handler is deprecated. The recommended approach to have control over "
                      "the authentication resource is to disable the built-in  resource by "
                      "setting JWT_AUTH_URL_RULE=None and registering your own authentication "
                      "resource directly on your application.", DeprecationWarning, stacklevel=2)
        self.auth_request_callback = callback
        return callback