package Ġcom . arch . jon ny hs ia . mem ories . model . ms ic Ċ Ċ import Ġcom . arch . jon ny hs ia . mem ories . model . DataSource Ċ import Ġcom . arch . jon ny hs ia . mem ories . model . passport . bean . User Model Ċ Ċ interface ĠMisc DataSource Ġ: ĠDataSource Ġ{ ĊĊĠĠĠ Ġfun Ġget Device ID (): ĠString ĊĊĠĠĠ Ġfun Ġhave Welcome Page Entered (): ĠBoolean ĊĊĠĠĠ Ġfun Ġlet Welcome Page Entered ( enter ed : ĠBoolean Ġ= Ġtrue ) ĊĊĠĠĠ Ġfun Ġsave Latest UserInfo ( user : ĠUser Model ) Ċ }