package Ġcom . q ubit . android . sdk . internal . callback tracker Ċ Ċ import Ġretrofit 2 . Call Ċ import Ġretrofit 2 . http . POST Ċ import Ġretrofit 2 . http . Url Ċ Ċ interface ĠCallback Request API Ġ{ ĊĊĠ Ġ@ POST ĊĠ Ġfun Ġpost Callback Request (@ Url Ġurl : ĠString ): ĠCall < Void > Ċ } Ċ