'Initialize the FeedbackSummaryInstance
:returns: twilio.rest.api.v2010.account.call.feedback_summary.FeedbackSummaryInstance
:rtype: twilio.rest.api.v2010.account.call.feedback_summary.FeedbackSummaryInstance'

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

    super(FeedbackSummaryInstance, self).__init__(version)
    self._properties = {'account_sid': payload['account_sid'], 'call_count': deserialize.integer(payload['call_count']), 'call_feedback_count': deserialize.integer(payload['call_feedback_count']), 'date_created': deserialize.rfc2822_datetime(payload['date_created']), 'date_updated': deserialize.rfc2822_datetime(payload['date_updated']), 'end_date': deserialize.iso8601_datetime(payload['end_date']), 'include_subaccounts': payload['include_subaccounts'], 'issues': payload['issues'], 'quality_score_average': deserialize.decimal(payload['quality_score_average']), 'quality_score_median': deserialize.decimal(payload['quality_score_median']), 'quality_score_standard_deviation': deserialize.decimal(payload['quality_score_standard_deviation']), 'sid': payload['sid'], 'start_date': deserialize.iso8601_datetime(payload['start_date']), 'status': payload['status']}
    self._context = None
    self._solution = {'account_sid': account_sid, 'sid': (sid or self._properties['sid'])}
