package Ġsk . bum aza . cv stories . repository Ċ Ċ import Ġorg . springframework . data . repository . Crud Repository Ċ import Ġsk . bum aza . cv stories . entity . data . Resume Ċ import Ġjava . util .* Ċ Ċ interface ĠResume Repository Ġ: ĠCr ud Repository < Resume , ĠLong > Ġ{ ĊĊĠĠĠ Ġfun ĠfindBy Slug ( slug : ĠString ?) Ġ: ĠOptional < Resume > ĊĠĠĠ Ġfun Ġexists By Slug ( slug : ĠString ?) Ġ: ĠBoolean ? Ċ }