/// <reference types="node" />
import { SelectiveAckHeaderExtension } from './Extensions.js';
import type { HeaderInput, ISelectiveAckHeaderInput, MicroSeconds, PacketHeader, PacketType } from './PacketTyping.js';
import type { Uint16, Uint32, Uint8 } from '../index.js';
declare abstract class Header<T extends PacketType> {
    pType: PacketType;
    version: Uint8;
    extension: Uint8;
    connectionId: Uint16;
    timestampMicroseconds: MicroSeconds;
    timestampDifferenceMicroseconds: MicroSeconds;
    wndSize: Uint32;
    seqNr: Uint16;
    ackNr: Uint16;
    length: number;
    constructor(options: HeaderInput<T>);
    abstract encode(): Buffer;
}
export declare class BasicPacketHeader<T extends PacketType> extends Header<T> {
    constructor(options: HeaderInput<T>);
    encode(): Buffer;
}
export declare class SelectiveAckHeader extends Header<PacketType.ST_STATE> {
    selectiveAckExtension: SelectiveAckHeaderExtension;
    bitmask: Uint8Array;
    constructor(options: ISelectiveAckHeaderInput);
    encode(): Buffer;
}
export declare function createPacketHeader<T extends PacketType>(options: HeaderInput<T>): PacketHeader<T>;
export {};
//# sourceMappingURL=PacketHeader.d.ts.map