external interface PresentationMount revision "presentation-mount@1";
interface PresentationState id "presentation-state" revision "presentation-state@1" {
  queryable value occurrence id "state:occurrence" : string {
    get id "state:occurrence:get" execution snapshot targets [browser,server];
  }
  queryable relation presentationMount id "state:presentation-mount" : optional-one interface PresentationMount {
    resolve id "state:presentation-mount:resolve" execution snapshot targets [browser,server];
  }
  queryable relation parent id "state:parent" : optional-one interface PresentationState {
    resolve id "state:parent:resolve" execution snapshot targets [browser,server];
  }
}