[
    {
        "Write" = [
            {
                "Data" = [
                    [
                        "k";
                        [
                            "1"
                        ];
                        [
                            "3"
                        ];
                        [
                            "911"
                        ];
                        [
                            "911"
                        ];
                        [
                            "911"
                        ];
                        #;
                        #;
                        "test"
                    ];
                    [
                        "b";
                        [
                            "23"
                        ];
                        [
                            "25"
                        ];
                        [
                            "527"
                        ];
                        [
                            "527"
                        ];
                        [
                            "527"
                        ];
                        #;
                        #;
                        "test"
                    ];
                    [
                        "a";
                        [
                            "37"
                        ];
                        [
                            "39"
                        ];
                        [
                            "761"
                        ];
                        [
                            "761"
                        ];
                        [
                            "761"
                        ];
                        #;
                        #;
                        "test"
                    ];
                    [
                        "b";
                        [
                            "37"
                        ];
                        [
                            "39"
                        ];
                        [
                            "150"
                        ];
                        [
                            "150"
                        ];
                        [
                            "911"
                        ];
                        [
                            "37"
                        ];
                        [
                            [
                                "37"
                            ]
                        ];
                        "test"
                    ];
                    [
                        "q";
                        [
                            "75"
                        ];
                        [
                            "77"
                        ];
                        [
                            "200"
                        ];
                        [
                            "200"
                        ];
                        [
                            "200"
                        ];
                        #;
                        #;
                        "test"
                    ];
                    [
                        "z";
                        [
                            "75"
                        ];
                        [
                            "77"
                        ];
                        [
                            "150"
                        ];
                        [
                            "150"
                        ];
                        [
                            "350"
                        ];
                        [
                            "75"
                        ];
                        [
                            [
                                "75"
                            ]
                        ];
                        "test"
                    ];
                    [
                        "d";
                        [
                            "75"
                        ];
                        [
                            "77"
                        ];
                        [
                            "37"
                        ];
                        [
                            "37"
                        ];
                        [
                            "387"
                        ];
                        [
                            "75"
                        ];
                        [
                            [
                                "75"
                            ]
                        ];
                        "test"
                    ];
                    [
                        "o";
                        [
                            "150"
                        ];
                        [
                            "152"
                        ];
                        [
                            "527"
                        ];
                        [
                            "527"
                        ];
                        [
                            "527"
                        ];
                        #;
                        #;
                        "test"
                    ];
                    [
                        "f";
                        [
                            "150"
                        ];
                        [
                            "152"
                        ];
                        [
                            "200"
                        ];
                        [
                            "200"
                        ];
                        [
                            "727"
                        ];
                        [
                            "150"
                        ];
                        [
                            [
                                "150"
                            ]
                        ];
                        "test"
                    ];
                    [
                        "a";
                        [
                            "527"
                        ];
                        [
                            "529"
                        ];
                        [
                            "23"
                        ];
                        [
                            "23"
                        ];
                        [
                            "23"
                        ];
                        #;
                        #;
                        "test"
                    ];
                    [
                        "v";
                        [
                            "761"
                        ];
                        [
                            "763"
                        ];
                        [
                            "37"
                        ];
                        [
                            "37"
                        ];
                        [
                            "37"
                        ];
                        #;
                        #;
                        "test"
                    ];
                    [
                        "c";
                        [
                            "911"
                        ];
                        [
                            "913"
                        ];
                        [
                            "761"
                        ];
                        [
                            "761"
                        ];
                        [
                            "761"
                        ];
                        #;
                        #;
                        "test"
                    ];
                    [
                        "a";
                        [
                            "911"
                        ];
                        [
                            "913"
                        ];
                        [
                            "75"
                        ];
                        [
                            "75"
                        ];
                        [
                            "836"
                        ];
                        [
                            "911"
                        ];
                        [
                            [
                                "911"
                            ]
                        ];
                        "test"
                    ];
                    [
                        "v";
                        [
                            "911"
                        ];
                        [
                            "913"
                        ];
                        [
                            "23"
                        ];
                        [
                            "23"
                        ];
                        [
                            "859"
                        ];
                        [
                            "911"
                        ];
                        [
                            [
                                "911"
                            ]
                        ];
                        "test"
                    ]
                ];
                "Type" = [
                    "ListType";
                    [
                        "StructType";
                        [
                            [
                                "prefix";
                                [
                                    "DataType";
                                    "String"
                                ]
                            ];
                            [
                                "region";
                                [
                                    "OptionalType";
                                    [
                                        "DataType";
                                        "Uint32"
                                    ]
                                ]
                            ];
                            [
                                "region_2";
                                [
                                    "OptionalType";
                                    [
                                        "DataType";
                                        "Int32"
                                    ]
                                ]
                            ];
                            [
                                "avg_age";
                                [
                                    "OptionalType";
                                    [
                                        "DataType";
                                        "Double"
                                    ]
                                ]
                            ];
                            [
                                "sum_age";
                                [
                                    "OptionalType";
                                    [
                                        "DataType";
                                        "Uint64"
                                    ]
                                ]
                            ];
                            [
                                "sum_by_avg_age";
                                [
                                    "OptionalType";
                                    [
                                        "DataType";
                                        "Double"
                                    ]
                                ]
                            ];
                            [
                                "prev_region";
                                [
                                    "OptionalType";
                                    [
                                        "DataType";
                                        "Uint32"
                                    ]
                                ]
                            ];
                            [
                                "prev_region_list";
                                [
                                    "OptionalType";
                                    [
                                        "ListType";
                                        [
                                            "DataType";
                                            "Uint32"
                                        ]
                                    ]
                                ]
                            ];
                            [
                                "column8";
                                [
                                    "DataType";
                                    "String"
                                ]
                            ]
                        ]
                    ]
                ]
            }
        ]
    }
]