import { ElementRef, OnChanges, OnInit, SimpleChanges } from '@angular/core';
import * as i0 from "@angular/core";
export declare class AddAsteriskDirective implements OnInit, OnChanges {
    private elem;
    show: boolean;
    constructor(elem: ElementRef);
    ngOnInit(): void;
    ngOnChanges(changes: SimpleChanges): void;
    toggleAsterisk(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<AddAsteriskDirective, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<AddAsteriskDirective, "[addAsterisk]", never, { "show": { "alias": "show"; "required": false; }; }, {}, never, never, false, never>;
}