@Override
    public <R> R eval(Mode mode, String luaScript, ReturnType returnType) {
        return eval(mode, luaScript, returnType, Collections.emptyList());
    }
@Test
    public void testString() {
        RScript script = redisson.getScript(StringCodec.INSTANCE);
        String res = script.eval(RScript.Mode.READ_ONLY, "return 'hello'", RScript.ReturnType.STATUS);
        assertThat(res).isEqualTo("hello");
    }