'Generate an instance context for the instance, the context is capable of
performing various actions.  All instance actions are proxied to the context
:returns: SyncMapItemContext for this SyncMapItemInstance
:rtype: twilio.rest.preview.sync.service.sync_map.sync_map_item.SyncMapItemContext'

@property
def _proxy(self):

    if (self._context is None):
        self._context = SyncMapItemContext(self._version, service_sid=self._solution['service_sid'], map_sid=self._solution['map_sid'], key=self._solution['key'])
    return self._context
