import { Command } from './command';
export declare const MAX_EFFECTIVE_DISTANCE_ALPHABET_SIZE = 544;
export declare const INFINITY_COST = 1.7e+38;
export declare class ZopfliCostModel {
    private costCmd;
    private costDist;
    private literalCosts;
    private minCostCmd;
    private numBytes;
    private distanceHistogramSize;
    constructor(numBytes: number, distanceAlphabetSize: number);
    setFromLiteralCosts(position: number, ringbuffer: Uint8Array, ringbufferMask: number): void;
    setFromCommands(position: number, ringbuffer: Uint8Array, ringbufferMask: number, commands: Command[], lastInsertLen: number): void;
    private setCostFromHistogram;
    private estimateBitCostsForLiterals;
    getCommandCost(cmdCode: number): number;
    getDistanceCost(distCode: number): number;
    getLiteralCosts(from: number, to: number): number;
    getMinCostCmd(): number;
}
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