export interface IPsuedoShuffleOption {
    /**
     * The starting value of the shuffleable range.
     */
    min: number;
    /**
     * The ending value of the shuffleable range.
     *
     * Algorithm can be applied only when the difference
     * between the min and max values is at least 4.
     */
    max: number;
    /**
     * The index value to be shuffled.
     */
    index: number;
    /**
     * The private key used to encrypt the index value.
     *
     * If not specified, the default value is used.
     * (**Default value:** `psuedo-shuffle`)
     */
    privateKey?: string;
    /**
     * The public key used to encrypt the index value.
     *
     * If not specified, the default value is used.
     * (**Default value:** `psuedo-shuffle`)
     */
    publicKey?: string;
}
export declare const encode: ({ index, min, max, privateKey, publicKey, }: IPsuedoShuffleOption) => number;
export declare const decode: ({ index, min, max, privateKey, publicKey, }: IPsuedoShuffleOption) => number;