export default class ServiceFamilies {
    private _type;
    private _services;
    constructor();
    get type(): number;
    get length(): number;
    get services(): Map<number, number>;
    static createFromBuffer(buffer: Buffer, offset?: number): ServiceFamilies;
    set(id: number, version: number): void;
    service(id: number): number | undefined;
    toBuffer(): Buffer;
}