'Initialize the ParticipantInstance
:returns: twilio.rest.preview.proxy.service.session.participant.ParticipantInstance
:rtype: twilio.rest.preview.proxy.service.session.participant.ParticipantInstance'

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

    super(ParticipantInstance, self).__init__(version)
    self._properties = {'sid': payload['sid'], 'session_sid': payload['session_sid'], 'service_sid': payload['service_sid'], 'account_sid': payload['account_sid'], 'friendly_name': payload['friendly_name'], 'participant_type': payload['participant_type'], 'identifier': payload['identifier'], 'proxy_identifier': payload['proxy_identifier'], 'date_created': deserialize.iso8601_datetime(payload['date_created']), 'date_updated': deserialize.iso8601_datetime(payload['date_updated']), 'url': payload['url'], 'links': payload['links']}
    self._context = None
    self._solution = {'service_sid': service_sid, 'session_sid': session_sid, 'sid': (sid or self._properties['sid'])}
