/// <reference types="node" />
import { StreamDeckBase, InternalFillImageOptions } from './base';
import { KeyIndex } from './id';
/**
 * Base class for generation 2 hardware (starting with the xl)
 */
export declare abstract class StreamDeckGen2Base extends StreamDeckBase {
    /**
     * Sets the brightness of the keys on the Stream Deck
     *
     * @param {number} percentage The percentage brightness
     */
    setBrightness(percentage: number): void;
    resetToLogo(): void;
    getFirmwareVersion(): string;
    getSerialNumber(): string;
    protected transformKeyIndex(keyIndex: KeyIndex): KeyIndex;
    protected getFillImageCommandHeaderLength(): number;
    protected writeFillImageCommandHeader(buffer: Buffer, keyIndex: number, partIndex: number, isLast: boolean, bodyLength: number): void;
    protected getFillImagePacketLength(): number;
    protected convertFillImage(sourceBuffer: Buffer, sourceOptions: InternalFillImageOptions): Buffer;
    private transformCoordinates;
}