export interface FetchedPage {
    url: string;
    finalUrl: string;
    status: number;
    title: string;
    text: string;
    html: string;
    fetchedAt: number;
    mimeType?: string;
    bytes?: Uint8Array;
}
export interface BrowserOptions {
    headless: boolean;
    timeoutMs: number;
    maxBytes: number;
    userAgent?: string;
    cdpEndpoint?: string;
}
export declare const DEFAULT_USER_AGENT: string;
export declare class FetchWedgeError extends Error {
    constructor(url: string, ms: number);
}
export declare function withHardDeadline<T>(work: Promise<T>, ms: number, url: string): Promise<T>;
export declare class BrowserSession {
    private readonly opts;
    private browser;
    private context;
    constructor(opts: BrowserOptions);
    start(): Promise<void>;
    fetch(url: string): Promise<FetchedPage>;
    private extractViaPage;
    private fetchPdf;
    close(): Promise<void>;
}
export declare function extractMimeType(headerValue: string | undefined): string | undefined;
//# sourceMappingURL=browser.d.ts.map