arrayRepeat (list1, list2) {
    let newArr = list1.concat(list2)
    var result = []
    var obj = {}
    for (var i = 0; i < newArr.length; i++) {
      if (!obj[newArr[i].destId]) {
        result.push(newArr[i])
        obj[newArr[i].destId] = true
      }
    }
    return result
  },
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