import interface PresentationState;
import interface PresentationMount;
interface PresentationStates<object Navigation implements PresentationState> id "interface:org.quixos.presentation-states" revision "interface:org.quixos.presentation-states@1" {
  operation ensure id "presentation-states:ensure" : record {presentationMount:interface-ref<PresentationMount>;occurrence:string;parent:optional<interface-ref<PresentationState>>;} -> unit {
    call id "presentation-states:ensure:call" execution transaction;
  }
  operation create id "presentation-states:create" : record {presentationMount:interface-ref<PresentationMount>;occurrence:string;parent:optional<interface-ref<PresentationState>>;} -> ref<Navigation> {
    call id "presentation-states:create:call" execution transaction;
  }
}