'Update the SyncMapItemInstance
:param dict data: The data
:returns: Updated SyncMapItemInstance
:rtype: twilio.rest.preview.sync.service.sync_map.sync_map_item.SyncMapItemInstance'

def update(self, data):

    data = values.of({'Data': serialize.object(data)})
    payload = self._version.update('POST', self._uri, data=data)
    return SyncMapItemInstance(self._version, payload, service_sid=self._solution['service_sid'], map_sid=self._solution['map_sid'], key=self._solution['key'])
