docs: function(number,systemName){
      if(!number || number < 1){
          number = 10
      }
      var dbPath = path.join(os.tmpdir() , fileName(systemName))
      var db = storage(dbPath)
  
      var items = db.select(systemName || sys)
      var index = items.length > number ? items.length - number : 0;
      return items.slice(index)
  
  }