{ "SSUBSCRIBE": { "summary": "Listen for messages published to the given shard channels", "complexity": "O(N) where N is the number of shard channels to subscribe to.", "group": "pubsub", "since": "7.0.0", "arity": -2, "function": "ssubscribeCommand", "command_flags": [ "PUBSUB", "NOSCRIPT", "LOADING", "STALE" ], "arguments": [ { "name": "shardchannel", "type": "string", "multiple": true } ], "key_specs": [ { "flags": [ "NOT_KEY" ], "begin_search": { "index": { "pos": 1 } }, "find_keys": { "range": { "lastkey": -1, "step": 1, "limit": 0 } } } ] } }