def METHOD_NAME(doc):
    assert m.str_from_string().encode().decode() == "baz"
    assert m.str_from_bytes().encode().decode() == "boo"
    assert doc(m.str_from_bytes) == "str_from_bytes() -> str"
    class A(object):
        def __str__(self):
            return "this is a str"
        def __repr__(self):
            return "this is a repr"
    assert m.str_from_object(A()) == "this is a str"
    assert m.repr_from_object(A()) == "this is a repr"
    s1, s2 = m.str_format()
    assert s1 == "1 + 2 = 3"
    assert s1 == s2