def METHOD_NAME(german_credit_data: Dataset):
    assert len(german_credit_data.df) == 1000
    german_credit_data.add_slicing_function(filter_without_parenthesis)
    german_credit_data.add_transformation_function(transform_divide_by_five)
    german_credit_data.add_slicing_function(filter_with_parenthesis)
    assert len(german_credit_data.df) == 1000
    ds = german_credit_data.process()
    assert len(ds.df) == 188