'Initialize the UserBindingInstance
:returns: twilio.rest.notify.v1.service.user.user_binding.UserBindingInstance
:rtype: twilio.rest.notify.v1.service.user.user_binding.UserBindingInstance'

def __init__(self, version, payload, service_sid, identity, sid=None):

    super(UserBindingInstance, self).__init__(version)
    self._properties = {'sid': payload['sid'], 'account_sid': payload['account_sid'], 'service_sid': payload['service_sid'], 'credential_sid': payload['credential_sid'], 'date_created': deserialize.iso8601_datetime(payload['date_created']), 'date_updated': deserialize.iso8601_datetime(payload['date_updated']), 'notification_protocol_version': payload['notification_protocol_version'], 'endpoint': payload['endpoint'], 'identity': payload['identity'], 'binding_type': payload['binding_type'], 'address': payload['address'], 'tags': payload['tags'], 'url': payload['url'], 'links': payload['links']}
    self._context = None
    self._solution = {'service_sid': service_sid, 'identity': identity, 'sid': (sid or self._properties['sid'])}
