{
    "model_type": "XGBClassifier",
    "features": [
        "merchant",
        "category",
        "amt",
        "last",
        "city",
        "city_pop",
        "merch_lat",
        "merch_long",
        "hour",
        "age"
    ],
    "train_test_split": {
        "test_size": 0.2,
        "random_state": 42
    },
    "preprocessing": {
        "scaler": "StandardScaler",
        "features_scaled": [
            "merchant",
            "category",
            "amt",
            "last",
            "city",
            "city_pop",
            "merch_lat",
            "merch_long",
            "hour",
            "age"
        ]
    }
}