package Ġcom . tc . ke fan . mvp . model Ċ Ċ import Ġcom . tc . ke fan . base . BaseModel Ċ import Ġcom . tc . ke fan . http . Ret rofit Helper Ċ import Ġcom . tc . ke fan . mvp . contract . Knowledge Tree Contract Ċ import Ġcom . tc . ke fan . mvp . model . bean . Http Result Ċ import Ġcom . tc . ke fan . mvp . model . bean . Knowledge Tree Body Ċ import Ġio . reactivex . Observable Ċ Ċ /** Ċ Ġ* ĠCreated Ġby Ġt uc ai Ġon Ġ 2 0 1 8 / 5 / 8 . Ċ Ġ*/ Ċ class ĠKnowledge Tree Model Ġ: ĠBase Model (), ĠKnowledge Tree Contract . Model Ġ{ ĊĊĠĠĠ Ġoverride Ġfun Ġrequest Knowledge Tree (): ĠObservable < Http Result < List < Knowledge Tree Body >>> Ġ{ ĊĠĠĠĠĠĠĠ Ġreturn ĠRet rofit Helper . service . get Knowledge Tree () ĊĠĠĠ Ġ} Ċ Ċ }