import { ChangeDetectorRef, OnDestroy, OnInit, TemplateRef } from '@angular/core';
import { TreeNode, TreeUIOptions } from '../../models';
export declare class TreeNodeExpanderComponent implements OnInit, OnDestroy {
    private cdRef;
    options: TreeUIOptions;
    node: TreeNode;
    index: number;
    template: TemplateRef<any>;
    className: boolean;
    private structureChangeSub;
    private toggleChangeSub;
    constructor(cdRef: ChangeDetectorRef);
    ngOnInit(): void;
    ngOnDestroy(): void;
}