code: static Map<String, Object> processAttributesForIncremental(Map<String, Object> attributes) {
      Map<String, Object> attributeMap = new HashMap<>();
      if (attributes.containsKey(Conversation.NAME)) {
        attributeMap.put(Conversation.NAME, attributes.get(Conversation.NAME));
      }
      for (Map.Entry<String, Object> entry : attributes.entrySet()) {
        String k = entry.getKey();
        if (!Arrays.asList(Conversation.CONVERSATION_COLUMNS).contains(k)) {
          attributeMap.put(ATTR_PERFIX + k, entry.getValue());
        }
      }
      if (attributeMap.isEmpty()) {
        return null;
      }
      return attributeMap;
    }
docs: 增量更新 attributes
  这里处理完的格式应该类似为 {"attr.key1":"value2", "attr.key2":"value2"}
  @param attributes
  @return