This code currently works, however it does not recognize the Audience ID's which I gave, and it does not seem like it corresponds to the ids from the report. E.g. "uservertical::933005" nor
function interests() {
var interests = []
var campaignIterator = AdsApp.campaigns().withIds([1668598316]).get()
while (campaignIterator.hasNext()){
var campaign = campaignIterator.next()
var adgroupIterator = campaign.adGroups().get()
while (adgroupIterator.hasNext()){
var adgroup = adgroupIterator.next()
var audienceBuilder = adgroup.targeting().newUserListBuilder();
var audienceOperation = audienceBuilder
.withAudienceId(1000) // required
.withBidModifier(1.1) // optional
.build(); // add the audience
var audience = audienceOperation.getResult()}}}