def verify(self, **kwargs):
super(RegistrationResponse, self).verify(**kwargs)<EOL>has_reg_uri = "<STR_LIT>" in self<EOL>has_reg_at = "<STR_LIT>" in self<EOL>if has_reg_uri != has_reg_at:<EOL><INDENT>raise VerificationError((<EOL>"<STR_LIT>"<EOL>"<STR_LIT>"), self)<EOL><DEDENT>return True<EOL>
Implementations MUST either return both a Client Configuration Endpoint
and a Registration Access Token or neither of them.
:param kwargs:
:return: True if the message is OK otherwise False