package Ġcom . os ama . books . domain Ċ Ċ import Ġcom . os ama . books . data . model . Book Response DTO Ċ import Ġio . reactivex . Observable Ċ Ċ interface ĠBooks Repository Ġ{ ĊĠĠĠ Ġfun Ġget Books ( search Value : ĠString ): ĠObservable < Book Response DTO > Ċ }