export declare type subType = 'connect' | 'deliveryStatusChanged' | 'moveStatusChanged' | 'transfer' | 'atHomeChanged';
export declare class Subs {
    connect: void | null;
    deliveryStatusChanged: ((status: number) => void) | null;
    moveStatusChanged: ((status: number) => void) | null;
    transfer: void | null;
    atHomeChanged: ((status: boolean) => void) | null;
    add({ type, fn }: {
        type: subType;
        fn: void;
    }): void;
    has(type: subType): boolean;
    typeCheck(type: subType): boolean;
}