Broken Link to the CubeCell Dev-board example code

I have an arduino enabled HTCC-AB01 but want to use it in AT-mode. Where do I find the CubeCell Dev-Board factory test program for the HTCC-AB01?

The CubeCell_Series_AT_Command_User_Manual_V0.2 link is broken (404 page not found error) to the file https://github.com/HelTecAutomation/ASR650x-Arduino/blob/master/libraries/LoRa/examples/PASSMODE/PASSMODE.ino

BWT. Document page moved to here: https://heltec-automation-docs.readthedocs.io/en/latest/