某点选验证码识别

{
    "success": true,
    "points": [
        {
            "x": 155,
            "y": 254
        },
        {
            "x": 193,
            "y": 92
        },
        {
            "x": 74,
            "y": 173
        }
    ],
    "candidates_count": 6,
    "message": "识别成功",
    "visualization": "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