package Ġcom . sub tle fox . currency rates . domain . repository Ċ Ċ import Ġio . reactivex . Observable Ċ import Ġio . reactivex . Single Ċ Ċ interface ĠConnect ivity Repository Ġ{ ĊĠĠĠ Ġfun Ġobserve Connectivity (): ĠObservable < Boolean > ĊĠĠĠ Ġfun Ġis Connected (): ĠSingle < Boolean > Ċ }