import { PixelMap } from 'binary-pixel-map';
export declare class SH1106 {
    readonly width: number;
    readonly height: number;
    readonly canvas: PixelMap;
    constructor(width?: number, height?: number);
    /**
     * Turn the display on.
     */
    show(): void;
    /**
     * Turn the display off.
     */
    hide(): void;
    /**
     * Set the contrast.
     * @param level
     */
    contrast(level: number): void;
    /**
     * Close the device.
     */
    close(): void;
    /**
     * Write the current canvas to the display.
     */
    refresh(): void;
    private initialize;
}