package Ġcom . rock spin . android dev test . data Ċ Ċ import Ġcom . rock spin . android dev test . data . entities . Cos mon aut Activity Ċ import Ġio . reactivex . Observable Ċ Ċ interface ĠCos mon aut s DataSource Ġ{ ĊĊĠĠĠ Ġfun Ġget Activities (): ĠObservable < List < Cos mon aut Activity >> Ċ }