def METHOD_NAME():
    from functools import partial
    def func1():
        return "func1"
    def func2(a, b, c, d):
        return "func2", a, b, c, d
    def func3(a):
        return "func3({})".format(a)
    assert m.test_callback1(func1) == "func1"
    assert m.test_callback2(func2) == ("func2", "Hello", "x", True, 5)
    assert m.test_callback1(partial(func2, 1, 2, 3, 4)) == ("func2", 1, 2, 3, 4)
    assert m.test_callback1(partial(func3, "partial")) == "func3(partial)"
    assert m.test_callback3(lambda i: i + 1) == "func(43) = 44"
    f = m.test_callback4()
    assert f(43) == 44
    f = m.test_callback5()
    assert f(number=43) == 44