package Ġcom . an amarin . bitcoin prices app . domain . repositories Ċ Ċ import Ġcom . an amarin . bitcoin prices app . core . result . Outcome Ċ import Ġcom . an amarin . bitcoin prices app . data . models . Bitcoin Chart Ċ import Ġcom . an amarin . bitcoin prices app . data . models . Bitcoin Info Model Ċ import Ġio . reactivex . Single Ċ Ċ interface ĠBitcoin Info Repository Ġ{ ĊĊĠĠĠ Ġfun Ġfetch Bitcoin Info Single ( ĊĠĠĠĠĠĠĠ Ġquantity : ĠInt , ĊĠĠĠĠĠĠĠ Ġperiod : ĠString , ĊĠĠĠĠĠĠĠ Ġname : ĠString ĊĠĠĠ Ġ): ĠSingle < Outcome < Bitcoin Chart >> Ċ Ċ }