type Byte = Uint8Array[1];
type Frame = {
    length?: number;
    type: Byte;
    flags: Byte;
    streamId: number;
    payload?: unknown;
};

declare class Http2Frame {
    static createPreface(): Uint8Array;
    static createPongFrame(payload: Uint8Array): Uint8Array;
    static createSettingsFrame(settings?: {}): Uint8Array<ArrayBufferLike>;
    static createSettingsAckFrame(): Uint8Array<ArrayBufferLike>;
    /**
 * 创建 WINDOW_UPDATE 帧
 * @param streamId 流ID，0表示连接级别的窗口更新
 * @param increment 窗口大小增量（必须为正数）
 * @returns 编码好的 WINDOW_UPDATE 帧
 */
    static createWindowUpdateFrame(streamId: number, increment: number): Uint8Array;
    static createDataFrames(streamId: number, data: Uint8Array, shouldEnd?: boolean, maxFrameSize?: number): Uint8Array[];
    static createDataFrame(streamId: number, data: Uint8Array, endStream?: boolean): Uint8Array;
    static createHeadersFrame(streamId: number, path: string, endHeaders?: boolean, token?: string, authority?: string): Uint8Array;
    static createResponseHeadersFrame(streamId: number, headersList: {
        [key: string]: string;
    }, endHeaders?: boolean): Uint8Array;
    static createTrailersFrame(streamId: number, trailers: {
        [key: string]: string;
    }): Uint8Array;
    static createOriginSettingsFrame(settings?: {}): Frame;
    static createOriginSettingsAckFrame(): {
        type: number;
        flags: number;
        streamId: number;
        payload: never[];
    };
    static createFrame(type: Byte, flags: Byte, streamId: number, payload: Uint8Array): Uint8Array;
}

export { Http2Frame };