src/commands/zrandmember.json


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{
    "ZRANDMEMBER": {
        "summary": "Returns one or more random members from a sorted set.",
        "complexity": "O(N) where N is the number of members returned",
        "group": "sorted_set",
        "since": "6.2.0",
        "arity": -2,
        "function": "zrandmemberCommand",
        "command_flags": [
            "READONLY"
        ],
        "acl_categories": [
            "SORTEDSET"
        ],
        "command_tips": [
            "NONDETERMINISTIC_OUTPUT"
        ],
        "key_specs": [
            {
                "flags": [
                    "RO",
                    "ACCESS"
                ],
                "begin_search": {
                    "index": {
                        "pos": 1
                    }
                },
                "find_keys": {
                    "range": {
                        "lastkey": 0,
                        "step": 1,
                        "limit": 0
                    }
                }
            }
        ],
        "reply_schema": {
            "anyOf": [
                {
                    "type": "null",
                    "description": "Key does not exist."
                },
                {
                    "type": "string",
                    "description": "Randomly selected element when 'COUNT' is not used."
                },
                {
                    "type": "array",
                    "description": "Randomly selected elements when 'COUNT' is used.",
                    "items": {
                        "type": "string"
                    }
                },
                {
                    "type": "array",
                    "description": "Randomly selected elements when 'COUNT' and 'WITHSCORES' modifiers are used.",
                    "items": {
                        "type": "array",
                        "minItems": 2,
                        "maxItems": 2,
                        "items": [
                            {
                                "type": "string",
                                "description": "Element."
                            },
                            {
                                "type": "number",
                                "description": "Score."
                            }
                        ]
                    }
                }
            ]
        },
        "arguments": [
            {
                "name": "key",
                "type": "key",
                "key_spec_index": 0
            },
            {
                "name": "options",
                "type": "block",
                "optional": true,
                "arguments": [
                    {
                        "name": "count",
                        "type": "integer"
                    },
                    {
                        "name": "withscores",
                        "token": "WITHSCORES",
                        "type": "pure-token",
                        "optional": true
                    }
                ]
            }
        ]
    }
}