package Ġcom . no he lt cj . starter . domain Ċ Ċ interface ĠValidation Interactor Ġ{ ĊĠĠĠ Ġfun ĠisValid Email ( email : ĠString ): ĠBoolean ĊĠĠĠ Ġfun ĠisValid Password ( password : ĠString ): ĠBoolean Ċ }