package Ġi . num an . quiz app . db _. Dao _ Ċ Ċ import Ġi . num an . quiz app . db _. entity _. Quiz ListModel ĊĊ Ċ interface Ġon Fire Store Task Completed Ġ{ ĊĊĠĠĠ Ġfun Ġquiz List Data Added ( quiz ListModel : ĠList < Quiz ListModel >) Ġ// Ġit 'll Ġreturn Ġa Ġlist Ġof Ġitems ĊĠĠĠ Ġfun Ġget Error ( e : ĠException ) Ċ }