package Ġru . ss hex . exchange . data . re posit i ory . datasource Ċ Ċ import Ġio . reactivex . Observable Ċ import Ġru . ss hex . exchange . data . dto . Currency ListResponse Ċ Ċ interface ĠNetwork DataSource Ġ{ ĊĠĠĠ Ġfun Ġrequest Currency Rate ( base Currency : ĠString ): ĠObservable < Currency ListResponse > Ċ }