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/proc/self/root/opt/redis-8/src/commands/

//proc/self/root/opt/redis-8/src/commands/randomkey.json

 {
    "RANDOMKEY": {
        "summary": "Returns a random key name from the database.",
        "complexity": "O(1)",
        "group": "generic",
        "since": "1.0.0",
        "arity": 1,
        "function": "randomkeyCommand",
        "command_flags": [
            "READONLY",
            "TOUCHES_ARBITRARY_KEYS"
        ],
        "acl_categories": [
            "KEYSPACE"
        ],
        "command_tips": [
            "REQUEST_POLICY:ALL_SHARDS",
            "RESPONSE_POLICY:SPECIAL",
            "NONDETERMINISTIC_OUTPUT"
        ],
        "reply_schema": {
            "oneOf": [
                {
                    "description": "when the database is empty",
                    "type": "null"
                },
                {
                    "description": "random key in db",
                    "type": "string"
                }
            ]
        }
    }
}