{
    "BLPOP": {
        "summary": "Remove and get the first element in a list, or block until one is available",
        "complexity": "O(N) where N is the number of provided keys.",
        "group": "list",
        "since": "2.0.0",
        "arity": -3,
        "function": "blpopCommand",
        "history": [
            [
                "6.0.0",
                "`timeout` is interpreted as a double instead of an integer."
            ]
        ],
        "command_flags": [
            "WRITE",
            "NOSCRIPT",
            "BLOCKING"
        ],
        "acl_categories": [
            "LIST"
        ],
        "key_specs": [
            {
                "flags": [
                    "RW",
                    "ACCESS",
                    "DELETE"
                ],
                "begin_search": {
                    "index": {
                        "pos": 1
                    }
                },
                "find_keys": {
                    "range": {
                        "lastkey": -2,
                        "step": 1,
                        "limit": 0
                    }
                }
            }
        ],
        "arguments": [
            {
                "name": "key",
                "type": "key",
                "key_spec_index": 0,
                "multiple": true
            },
            {
                "name": "timeout",
                "type": "double"
            }
        ]
    }
}