{
    "arch": ["hierarchical", "global"],
    "hidden": [16, 32, 64, 128],
    "pool_ratio": [0.25, 0.5],
    "lr": [1e-2, 5e-2, 1e-3, 5e-3, 1e-4, 5e-4],
    "weight_decay": [1e-2, 1e-3, 1e-4, 1e-5],
    "dataset": ["DD", "PROTEINS", "NCI1", "NCI109", "Mutagenicity"]
}