import { ElementRef, EventEmitter, NgZone, OnChanges, OnDestroy, OnInit, SimpleChanges } from '@angular/core';
import { NgFlowDesignerNodeDirective } from './ng-flow-designer-node.directive';
import { CyElement } from './interfaces';
import * as cytoscape from 'cytoscape';
import { NgFlowDesignerComponent } from './ng-flow-designer.component';
import { NgFlowDesignerService } from './ng-flow-designer.service';
export declare class NgFlowDesignerOutputDirective implements CyElement, OnInit, OnChanges, OnDestroy {
    host: ElementRef;
    parentNode: NgFlowDesignerNodeDirective;
    private designerComponent;
    private ngFlowDesignerService;
    private ngZone;
    id: string;
    target?: string;
    showArrow: boolean;
    targetChange: EventEmitter<string>;
    private controller;
    node?: NgFlowDesignerNodeDirective;
    isRegistered: boolean;
    private cy;
    private cyCurrentTarget?;
    private destroy$;
    constructor(host: ElementRef, parentNode: NgFlowDesignerNodeDirective, designerComponent: NgFlowDesignerComponent, ngFlowDesignerService: NgFlowDesignerService, ngZone: NgZone);
    setTarget(nodeId?: string, emit?: boolean): void;
    ngOnInit(): void;
    ngOnChanges(changes: SimpleChanges): void;
    ngOnDestroy(): void;
    getCyElement(): cytoscape.CollectionReturnValue;
    registerCy(cy: cytoscape.Core): void;
    private addCyEdge;
}