package Ġcom . android . music player . domain . use case Ċ Ċ import Ġcom . android . music player . data . model . Song Ċ import Ġcom . android . music player . domain . repository . Song Repository Ċ Ċ class ĠGet S ongs UseCase ( private Ġval Ġsong Repository : ĠSong Repository ) Ġ{ ĊĠĠĠ Ġfun ĠgetS ongs ( playlist Id : Int ): ĠList < Song >? Ġ{ ĊĠĠĠĠĠĠĠ Ġreturn Ġsong Repository . getS ongs ( playlist Id ) ĊĠĠĠ Ġ} Ċ }