package Ġa mat ere k . movie . domain . use case Ċ Ċ import Ġa mat ere k . movie . domain . repository . Movie Repository Ċ import Ġkotlinx . coroutines . flow . State Flow Ċ import Ġjavax . inject . Inject Ċ Ċ class ĠOb serve Favorite Movies UseCase Ġ@ Inject Ġconstructor ( private Ġval Ġmovie Repository : ĠMovie Repository ) Ġ{ ĊĊĠĠĠ Ġoperator Ġfun Ġinvoke (): ĠState Flow < Set < Long >> Ġ= ĊĠĠĠĠĠĠĠ Ġmovie Repository . favorite Movies Ids Ċ }