apollo-portal/src/main/java/com/ctrip/framework/apollo/portal/service/ItemService.java/ItemService/findDeletedItems
class ItemService:  public List<ItemDTO> findDeletedItems(String appId, Env env, String clusterName, String namespaceName) {
    return itemAPI.findDeletedItems(appId, env, clusterName, namespaceName);
  }