human
Solve the following python programming problem given the following code:
@ pytest.fixture (scope = 'function') 
def remove_test_dir(request) : 
    '
    Remove the folder that is created by the test.
    ' 
    def fin_remove_test_dir() : 
        if os.path.exists ('test_copy_without_render') : 
            utils.rmtree ('test_copy_without_render') 
request.addfinalizer (<MASK>) 
    
    Given the code above, what is a proper replacement for <MASK>?
assistant
#Here is a proper replacement for <MASK>.
def fin_remove_test_dir(