{
    "USAGE": {
        "summary": "Estimates the memory usage of a key.",
        "complexity": "O(N) where N is the number of samples.",
        "group": "server",
        "since": "4.0.0",
        "arity": -3,
        "container": "MEMORY",
        "function": "memoryCommand",
        "command_flags": [
            "READONLY"
        ],
        "key_specs": [
            {
                "flags": [
                    "RO"
                ],
                "begin_search": {
                    "index": {
                        "pos": 2
                    }
                },
                "find_keys": {
                    "range": {
                        "lastkey": 0,
                        "step": 1,
                        "limit": 0
                    }
                }
            }
        ],
        "reply_schema": {
            "oneOf": [
                {
                    "description": "Number of bytes that a key and its value require to be stored in RAM.",
                    "type": "integer"
                },
                {
                    "description": "Key does not exist.",
                    "type": "null"
                }
            ]
        },
        "arguments": [
            {
                "name": "key",
                "type": "key",
                "key_spec_index": 0
            },
            {
                "token": "SAMPLES",
                "name": "count",
                "type": "integer",
                "optional": true
            }
        ]
    }
}