package Ġxyz . kh od ok . domain . repository . post Ċ Ċ import Ġio . reactivex . Single Ċ import Ġxyz . kh od ok . domain . model . Post Ċ Ċ interface ĠPost Repository Contract Ġ{ ĊĠĠĠ Ġfun ĠgetAll Posts (): ĠSingle < List < Post >> ĊĊĠĠĠ Ġfun Ġget Post By Slug ( post Slug : ĠString ): ĠSingle < Post > Ċ } Ċ