package Ġcom . so um ya . ww dab lu . phone input ext . network Ċ Ċ import Ġcom . so um ya . ww dab lu . phone input ext . network . model . Country Info Ċ import Ġio . reactivex . rx java 3 . core . Observable Ċ import Ġretrofit 2 . http . GET Ċ Ċ interface ĠCount ries Info API Ġ{ ĊĊĠĠĠ Ġ@ GET ("/ rest / v 2 / all ") ĊĠĠĠ Ġfun Ġfetch All Countries () Ġ: ĠObservable < List < Country Info >> Ċ }