export interface DocumentHtmlFingerprintSegment {
    hash: number;
    length: number;
    power: number;
}
/**
 * Hashes one HTML segment with a polynomial that can be combined without
 * rescanning unchanged prefixes and suffixes.
 */
export declare function createDocumentHtmlFingerprintSegment(source: string, from?: number, to?: number): DocumentHtmlFingerprintSegment;
export declare function combineDocumentHtmlFingerprintSegments(segments: Iterable<DocumentHtmlFingerprintSegment>): DocumentHtmlFingerprintSegment;
export declare function documentHtmlFingerprintForSegment(segment: DocumentHtmlFingerprintSegment): string;
export declare function documentHtmlFingerprint(html: string): string;
/** Accepts fingerprints written before composable document hashing shipped. */
export declare function documentHtmlFingerprintMatches(html: string, candidate: string): boolean;