package Ġcom . c ucer d ari anc atal in . instagram . screens . common Ċ Ċ import Ġandroidx . lifecycle . ViewModel Ċ import Ġcom . google . android . gms . tasks . On Failure Listener Ċ Ċ abstract Ġclass ĠBase ViewModel ( protected Ġval Ġon Failure Listener : ĠOn Failure Listener ) Ġ: ĠViewModel ()