UplinkDataHandle example

I was using modified UplinkDataHandle example in my project, but today (yesterday it was working just fine) I couldn’t compile it because “LoRaWan_APP.h” could not be found. I don’t know why it disappeared but it just did and I can’t find it anywhere. Also the example I was using (UplinkDataHandle) is missing too and I’m really starting to question my sanity. Can anyone help me figure out in what Heltec library the example is/was? Thanks much in advance!