import { CommonAuthorizationCodeRequest, AuthorizationCodeClient, Logger } from "@azure/msal-common";
import { InteractionHandler } from "./InteractionHandler";
import { BrowserCacheManager } from "../cache/BrowserCacheManager";
export declare class SilentHandler extends InteractionHandler {
    private navigateFrameWait;
    constructor(authCodeModule: AuthorizationCodeClient, storageImpl: BrowserCacheManager, authCodeRequest: CommonAuthorizationCodeRequest, browserRequestLogger: Logger, navigateFrameWait: number);
    /**
     * Creates a hidden iframe to given URL using user-requested scopes as an id.
     * @param urlNavigate
     * @param userRequestScopes
     */
    initiateAuthRequest(requestUrl: string): Promise<HTMLIFrameElement>;
    /**
     * Monitors an iframe content window until it loads a url with a known hash, or hits a specified timeout.
     * @param iframe
     * @param timeout
     */
    monitorIframeForHash(iframe: HTMLIFrameElement, timeout: number): Promise<string>;
    /**
     * @hidden
     * Loads iframe with authorization endpoint URL
     * @ignore
     */
    private loadFrame;
    /**
     * @hidden
     * Loads the iframe synchronously when the navigateTimeFrame is set to `0`
     * @param urlNavigate
     * @param frameName
     * @param logger
     */
    private loadFrameSync;
    /**
     * @hidden
     * Creates a new hidden iframe or gets an existing one for silent token renewal.
     * @ignore
     */
    private createHiddenIframe;
    /**
     * @hidden
     * Removes a hidden iframe from the page.
     * @ignore
     */
    private removeHiddenIframe;
}
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