{
    "SHARDCHANNELS": {
        "summary": "List active shard channels",
        "complexity": "O(N) where N is the number of active shard channels, and assuming constant time pattern matching (relatively short shard channels).",
        "group": "pubsub",
        "since": "7.0.0",
        "arity": -2,
        "container": "PUBSUB",
        "function": "pubsubCommand",
        "command_flags": [
            "PUBSUB",
            "LOADING",
            "STALE"
        ],
        "arguments": [
            {
                "name": "pattern",
                "type": "pattern",
                "optional": true
            }
        ]
    }
}
