package Ġcom . nan am are . mac . sample . data . market Ċ Ċ import Ġcom . nan am are . mac . sample . api . up bit . Market Model Ċ import Ġcom . nan am are . mac . sample . base . Base Source Ċ Ċ interface ĠMarket Source Ġ: ĠBase Source Ġ{ ĊĠĠĠ Ġfun Ġget Market List ( success : Ġ( List < Market Model >) Ġ-> ĠUnit , Ġfailed : Ġ() Ġ-> ĠUnit ) Ċ }