@Override
    public boolean containsEntry(Object key, Object value) {
        return get(containsEntryAsync(key, value));
    }
@Test
    public void testContainsEntry() {
        RListMultimap<SimpleKey, SimpleValue> map = redisson.getListMultimap("test1");
        map.put(new SimpleKey("0"), new SimpleValue("1"));

        assertThat(map.containsEntry(new SimpleKey("0"), new SimpleValue("1"))).isTrue();
        assertThat(map.containsEntry(new SimpleKey("0"), new SimpleValue("2"))).isFalse();
    }