package Ġpers . z 9 5 0 . product Ċ Ċ import Ġpers . z 9 5 0 . common . service . Close Ċ Ċ interface ĠProduct Service Ġ: ĠClose Ġ{ ĊĠ Ġsuspend Ġfun Ġget Product ( id : ĠString ): ĠProduct ? ĊĠ Ġsuspend Ġfun ĠgetAll Product (): ĠList < Product > ĊĠ Ġsuspend Ġfun Ġreduce Products ( id : ĠString , Ġnumber : ĠInt ) ĊĠ Ġsuspend Ġfun Ġupdate Products ( list : ĠList < Product >) ĊĠ Ġsuspend Ġfun Ġput Product ( id : ĠString , Ġnumber : ĠInt ): ĠProduct Ċ } Ċ