import transformer = require('./transformer');
export interface Config {
    key: number;
}
export declare var sampleConfig: () => Config;
export declare class CaesarCipher implements transformer.Transformer {
    /** Value by which bytes' values are shifted. */
    private shift_;
    constructor();
    configure: (json: string) => void;
    transform: (buffer: ArrayBuffer) => ArrayBuffer[];
    restore: (buffer: ArrayBuffer) => ArrayBuffer[];
    /** Applies mapper to each byte of buffer. */
    private map_;
    transformByte: (i: number) => number;
    restoreByte: (i: number) => number;
}