@Override
    public int expireEntries(Set<K> keys, Duration ttl) {
        return get(expireEntriesAsync(keys, ttl));
    }
@Test
    public void testExpireEntries() {
        RMapCacheNative<String, String> testMap = redisson.getMapCacheNative("map");
        testMap.put("key1", "value");
        testMap.put("key2", "value");
        testMap.expireEntries(new HashSet<>(Arrays.asList("key1", "key2")), Duration.ofMillis(20000));
        assertThat(testMap.remainTimeToLive("key1")).isBetween(19800L, 20000L);
    }