def foo():
    """test"""
    return 42

assert foo() == 42
assert foo.__doc__ == "test"

def my_func(a,):
    return a+2

assert my_func(2) == 4


def f1():

    """test1"""
    pass

assert f1.__doc__ == "test1"

def f2():
    '''test2'''
    pass

assert f2.__doc__ == "test2"

def f3():
    """
    test3
    """
    pass

assert f3.__doc__ == "\n    test3\n    "

def f4():
    "test4"
    pass

assert f4.__doc__ == "test4"