import { Nullable } from '@bimeister/utilities';
import { BusEventBase } from '../classes/abstract/bus-event-base.abstract';
declare class QueueEventBase<T> extends BusEventBase<T> {
    readonly payload: T;
    readonly scope: Nullable<string>;
    readonly id: string;
    readonly type: Nullable<string>;
    readonly fromId: Nullable<string>;
    constructor(payload: T);
}
export declare namespace QueueEvents {
    class AddToQueue extends QueueEventBase<BusEventBase> {
    }
    class RemoveFromQueue extends QueueEventBase<string> {
    }
    class StartQueue extends QueueEventBase<void> {
    }
}
export {};