@Override
    public void not() {
        get(notAsync());
    }
@Test
    public void testNot() {
        RBitSet bs = redisson.getBitSet("testbitset");
        bs.set(3);
        bs.set(5);
        bs.not();
        assertThat(bs.toString()).isEqualTo("{0, 1, 2, 4, 6, 7}");
    }