import { Manifest } from '@prose-reader/shared';
import { Observable } from 'rxjs';
import { ReaderSettingsManager } from '../../../settings/ReaderSettingsManager';
import { ResourceHandler } from '../../../spineItem/resources/ResourceHandler';
export declare const revokeFrameObjectUrl: (frameElement: HTMLIFrameElement | undefined) => void;
export declare const attachFrameSrc: ({ item, resourcesHandler, }: {
    settings: ReaderSettingsManager;
    item: Manifest[`spineItems`][number];
    resourcesHandler: ResourceHandler;
}) => (stream: Observable<HTMLIFrameElement>) => Observable<HTMLIFrameElement>;