import { ElementRef, Renderer2 } from '@angular/core';
import * as i0 from "@angular/core";
export declare class CustomTooltipDirective {
    private el;
    private renderer;
    tooltipText: string;
    private tooltipElement;
    constructor(el: ElementRef, renderer: Renderer2);
    onMouseEnter(): void;
    onMouseLeave(): void;
    private showTooltip;
    private hideTooltip;
    static ɵfac: i0.ɵɵFactoryDeclaration<CustomTooltipDirective, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<CustomTooltipDirective, "[appCustomTooltip]", never, { "tooltipText": { "alias": "appCustomTooltip"; "required": false; }; }, {}, never, never, true, never>;
}