package Ġcom . cost ular . mar vel hero es . data . db Ċ Ċ import Ġandroid . arch . persistence . room . Database Ċ import Ġandroid . arch . persistence . room . Room Database Ċ Ċ /** Ċ Ġ* ĠMar vel ĠHero es ĠRO OM ĠDatabase Ċ Ġ*/ Ċ @ Database ( entities Ġ= Ġ[ Mar vel Hero Entity :: class ], Ġversion Ġ= Ġ 1 ) Ċ abstract Ġclass ĠMar vel Hero Database Ġ: ĠRoom Database () Ġ{ ĊĊĠĠĠ Ġabstract Ġfun Ġget Mar vel Hero Dao (): ĠMar vel Hero Dao Ċ }