def METHOD_NAME():
    with open(os.path.join(TEST_DATA_DIR, "montblanc_assemblies.pickle"), "rb") as file:
        temp = pickle.load(file)
    single = temp.pop("single")
    data = np.full((max(temp) + 1, 3, 4, 4), np.nan)
    for k, assemblies in temp.items():
        for i, assembly in enumerate(assemblies):
            data[k, i] = assembly
    return inferenceutils._parse_ground_truth_data(data), single