public static boolean isProtobufClass(Class<?> pojoClazz) {
        if (protobufClss != null) {
            return protobufClss.isAssignableFrom(pojoClazz);
        }
        return false;
    }
@Test
    void testIsProtobufClass() {
        Assertions.assertTrue(ProtobufUtils.isProtobufClass(HelloRequest.class));
        Assertions.assertTrue(ProtobufUtils.isProtobufClass(HelloReply.class));
        Assertions.assertFalse(ProtobufUtils.isProtobufClass(Person.class));
        Assertions.assertFalse(ProtobufUtils.isProtobufClass(SerializablePerson.class));
        Assertions.assertFalse(ProtobufUtils.isProtobufClass(UserVo.class));
    }