import { OnInit } from '@angular/core';
import { NgControl } from '@angular/forms';
import { ClassNames, ErrorWhenType } from './ngx-error-message-interfaces';
import * as i0 from "@angular/core";
export declare class NgxErrorMessageComponent implements OnInit {
    classNames: ClassNames;
    fieldName: string;
    ngControl: NgControl;
    when: ErrorWhenType | ErrorWhenType[];
    patternKey?: string;
    protected lang?: string;
    private readonly translate;
    private readonly elementRef;
    private readonly renderer;
    private readonly destroy$;
    private previousErrorState;
    get hasError(): boolean;
    ngOnInit(): void;
    private updateErrorContainer;
    static ɵfac: i0.ɵɵFactoryDeclaration<NgxErrorMessageComponent, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<NgxErrorMessageComponent, "ngx-error-message", never, { "classNames": { "alias": "classNames"; "required": false; }; "fieldName": { "alias": "fieldName"; "required": false; }; "ngControl": { "alias": "ngControl"; "required": false; }; "when": { "alias": "when"; "required": false; }; "patternKey": { "alias": "patternKey"; "required": false; }; }, {}, never, never, true, never>;
}