def init_orthant_coverage_table(model1, layer_index, group_size):
    model_layer_dict1 = defaultdict(bool)
    init_orthant_cov_dict(model1, layer_index, group_size, model_layer_dict1)
    return model_layer_dict1
def init_orthant_coverage_table(model1, layer_index, group_size):
    model_layer_dict1 = defaultdict(bool)
    init_orthant_cov_dict(model1, layer_index, group_size, model_layer_dict1)
    return model_layer_dict1