import { AnimationCallbackEvent } from '@angular/core';
import { PoTreeViewItem } from './po-tree-view-item.interface';
export declare class PoTreeViewItemComponent {
    private readonly treeViewService;
    readonly componentsSize: import("@angular/core").InputSignal<string>;
    readonly item: import("@angular/core").InputSignal<PoTreeViewItem>;
    readonly level: import("@angular/core").InputSignal<number>;
    readonly selectable: import("@angular/core").InputSignal<boolean>;
    readonly selectedValue: import("@angular/core").InputSignal<string | number>;
    readonly singleSelect: import("@angular/core").InputSignal<boolean>;
    protected animateEnter(event: AnimationCallbackEvent): void;
    protected animateLeave(event: AnimationCallbackEvent): void;
    protected get hasSubItems(): boolean;
    protected onClick(): void;
    protected onSelect(selectedItem: PoTreeViewItem): void;
    protected onActivate(activatedItem: PoTreeViewItem): void;
    protected trackByFunction(index: number): number;
    private animateToggle;
}