export interface ExtractionResult {
    title: string;
    content: string;
    textContent: string;
    url: string;
    extractedAt: string;
    wordCount: number;
    byline: string | null;
    excerpt: string | null;
    siteName: string | null;
}
export interface FetchResult {
    html: string;
    finalUrl: string;
}
export interface ExtractOptions {
    timeoutMs?: number;
    maxContentLength?: number;
}
/** Checks whether a URL string has a valid http/https scheme. */
export declare function isValidUrl(url: string): boolean;
/**
 * Returns true if an IP address is private, loopback, link-local,
 * or otherwise reserved.
 */
export declare function isPrivateOrReservedIp(address: string, family?: number): boolean;
/**
 * Returns true if the hostname matches a private, loopback, link-local,
 * or otherwise reserved IP pattern. Does not perform DNS resolution.
 */
export declare function isPrivateOrReservedHost(hostname: string): boolean;
export declare function fetchHtml(url: string, options?: ExtractOptions): Promise<FetchResult>;
export declare function extractArticle(html: string, url: string): ExtractionResult | null;
export declare function extractFromUrl(url: string, options?: ExtractOptions): Promise<ExtractionResult>;
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