'Return data for an anonymous user, truncated to only usage and quota_percent'

def anon_user_api_value(self, trans):

    usage = trans.app.quota_agent.get_usage(trans)
    percent = trans.app.quota_agent.get_percent(trans=trans, usage=usage)
    return {'total_disk_usage': int(usage), 'nice_total_disk_usage': util.nice_size(usage), 'quota_percent': percent}
