パブリッシュ/サブスクライブ¶ SUBSCRIBE(channel_1, channel_2, ..., channel_N)¶ UNSUBSCRIBE(channel_1, channel_2, ..., channel_N)¶ UNSUBSCRIBE((unsubscribe, from, all, channels))¶ PSUBSCRIBE(pattern_1, pattern_2, ..., pattern_N)¶ PUNSUBSCRIBE(pattern_1, pattern_2, ..., pattern_N)¶ PUNSUBSCRIBE((unsubscribe, from, all, patterns))¶ PUBLISH(channel, message)¶ New in version 2.0.0. 計算時間: SUBSCRIBE はO(1)、 UNSUBSCRIBE