import { ElementRef, OnInit } from '@angular/core';
import * as i0 from "@angular/core";
export declare class CaseInsensitiveAllowedValuesDirective implements OnInit {
    private el;
    allowedValues: string[] | undefined;
    constructor(el: ElementRef);
    ngOnInit(): void;
    updateAllowedValues(): void;
    onInput(event: any): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<CaseInsensitiveAllowedValuesDirective, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<CaseInsensitiveAllowedValuesDirective, "[appCaseInsensitiveAllowedValues]", never, { "allowedValues": { "alias": "allowedValues"; "required": false; }; }, {}, never, never, false, never>;
}