import { BehaviorSubject, ReplaySubject, Observable } from 'rxjs';
import { Navigation } from '../navigation/types';
import { PaginationInfo } from '../pagination/types';
import { SpinePosition, UnboundSpinePosition } from '../spine/types';
export declare class BridgeEvent {
    navigationSubject: ReplaySubject<Navigation>;
    positionSubject: ReplaySubject<SpinePosition | UnboundSpinePosition>;
    viewportStateSubject: BehaviorSubject<"free" | "busy">;
    paginationSubject: ReplaySubject<PaginationInfo>;
    pagination$: Observable<PaginationInfo>;
    viewportState$: Observable<"free" | "busy">;
    viewportFree$: Observable<"free">;
    viewportBusy$: Observable<"busy">;
    navigation$: Observable<Navigation>;
    position$: Observable<SpinePosition | UnboundSpinePosition>;
}