export interface BackwardMatch {
    distance: number;
    length: number;
    score: number;
    lenCodeDelta: number;
}
export interface HasherSearchResult {
    len: number;
    distance: number;
    score: number;
    lenCodeDelta: number;
}
export declare const LITERAL_BYTE_SCORE = 135;
export declare const DISTANCE_BIT_PENALTY = 30;
export declare const SCORE_BASE: number;
export declare const INVALID_MATCH = 4294967295;
export declare function backwardReferenceScore(copyLength: number, backwardDistance: number): number;
export declare function backwardReferenceScoreUsingLastDistance(copyLength: number): number;
export declare function backwardReferencePenaltyUsingLastDistance(distanceShortCode: number): number;
export declare function findMatchLength(data: Uint8Array, s1: number, s2: number, limit: number): number;
export declare function findMatchLengthWithLimit(s1: Uint8Array, s1Offset: number, s2: Uint8Array, s2Offset: number, limit: number): number;
export declare function createBackwardMatch(distance: number, length: number): BackwardMatch;
export declare function createDictionaryBackwardMatch(distance: number, length: number, lenCodeDelta: number): BackwardMatch;
export declare function createSearchResult(): HasherSearchResult;
export declare function prepareDistanceCache(distanceCache: Int32Array, numDistances: number): void;
export declare function createDistanceCache(): Int32Array;
export declare const HASH_MUL_32 = 506832829;
export declare function hashBytes4(data: Uint8Array, pos: number, bucketBits: number): number;
export declare function hashBytes8(data: Uint8Array, pos: number, hashLen: number, bucketBits: number): number;
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