def METHOD_NAME():
    from dipy.utils.deprecator import deprecated_params
    def test(dummy=11, x=3):
        return dummy, x
    @deprecated_params('x', None, '0.3', '0.5', alternative='test2.y')
    def test2(dummy=11, x=3):
        return dummy, x
    @deprecated_params(['dummy', 'x'], None, '0.3', alternative='test2.y')
    def test3(dummy=11, x=3):
        return dummy, x
    @deprecated_params(['dummy', 'x'], None, '0.3', '0.5', alternative='test2.y')
    def test4(dummy=11, x=3):
        return dummy, x
    expected_res = {'dummy': 11, 'x': 3}
    for func in [test, test2, test3, test4]:
        assert get_default_args(func) == expected_res