def __init__(self, version, response, solution):
super(ChallengePage, self).__init__(version, response)<EOL>self._solution = solution<EOL>
Initialize the ChallengePage

:param Version version: Version that contains the resource
:param Response response: Response from the API
:param service_sid: Service Sid.
:param identity: Unique identity of the Entity
:param factor_sid: Factor Sid.

:returns: twilio.rest.authy.v1.service.entity.factor.challenge.ChallengePage
:rtype: twilio.rest.authy.v1.service.entity.factor.challenge.ChallengePage