How to get all Video ads which are associated with campaigns which have started this year

I'm not sure what to put in the withCondition to get all such videoAds.

var videoAds = AdsApp                 .videoAds()                 .withCondition('????')                                     .get(); while (videoAds.hasNext()) {     var videoAd = videoAds.next();     data.push([         videoAd.getVideoCampaign().getId(),         videoAd.getVideoCampaign().getName(),         videoAd.getVideoAdGroup().getId(),         videoAd.getVideoAdGroup().getName(),         videoAd.getId(),         videoAd.getName(),     ]); }