import { WorkItem$1 } from "./WorkItem$1";
import { WorkItemScheduler } from "./WorkItemScheduler";
import { BaseError, Type } from "igniteui-webcomponents-core";
/**
 * @hidden
 */
export declare class ExternalEventWorkItem$1<T> extends WorkItem$1<T> {
    static $t: Type;
    protected $t: Type;
    private af;
    private ae;
    constructor($t: Type);
    protected p(a: WorkItemScheduler): boolean;
    protected get_t(): boolean;
    ag(a: T, b?: BaseError): void;
}