{
    "CAT": {
        "summary": "Lists the ACL categories, or the commands inside a category.",
        "complexity": "O(1) since the categories and commands are a fixed set.",
        "group": "server",
        "since": "6.0.0",
        "arity": -2,
        "container": "ACL",
        "function": "aclCommand",
        "command_flags": [
            "NOSCRIPT",
            "LOADING",
            "STALE",
            "SENTINEL"
        ],
        "reply_schema": {
            "anyOf": [
                {
                    "type": "array",
                    "description": "In case `category` was not given, a list of existing ACL categories",
                    "items": {
                        "type": "string"
                    }
                },
                {
                    "type": "array",
                    "description": "In case `category` was given, list of commands that fall under the provided ACL category",
                    "items": {
                        "type": "string"
                    }
                }
            ]
        },
        "arguments": [
            {
                "name": "category",
                "type": "string",
                "optional": true
            }
        ]
    }
}