export interface ExtractionResult {
    matches: string[];
    count: number;
    method: string;
}
export type TableRow = Record<string, string>;
export interface PageMetadata {
    title: string | null;
    description: string | null;
    keywords: string | null;
    ogTitle: string | null;
    ogDescription: string | null;
    ogImage: string | null;
    ogUrl: string | null;
    ogType: string | null;
    ogSiteName: string | null;
    ogLocale: string | null;
    twitterCard: string | null;
    twitterTitle: string | null;
    twitterDescription: string | null;
    twitterImage: string | null;
    twitterSite: string | null;
    canonical: string | null;
    robots: string | null;
    hreflang: Array<{
        lang: string;
        href: string;
    }>;
    themeColor: string | null;
    favicon: string | null;
    jsonLd: object[];
    schemaTypes: string[];
    lang: string | null;
}
export declare function extractByCssSelector(html: string, selector: string, attr?: string): ExtractionResult;
export declare function extractByXPath(html: string, xpath: string): ExtractionResult;
export declare function extractByRegex(text: string, pattern: string, flags?: string): ExtractionResult;
export declare function extractTables(html: string): TableRow[][];
export declare function extractMetadata(html: string, url: string): PageMetadata;
export interface ProductData {
    name: string | null;
    description: string | null;
    brand: string | null;
    sku: string | null;
    price: number | null;
    priceCurrency: string | null;
    availability: string | null;
    rating: number | null;
    reviewCount: number | null;
    image: string | null;
    url: string | null;
}
export declare function extractStructuredProduct(jsonLd: object[]): ProductData | null;
export declare function extractImages(html: string, baseUrl: string): Array<{
    src: string;
    alt: string;
    width?: number;
    height?: number;
}>;
export declare function extractMediaFiles(html: string, baseUrl: string): Array<{
    url: string;
    type: 'image' | 'video' | 'audio' | 'document';
    tag: string;
}>;