import { ElementRef, AfterViewInit } from '@angular/core';
import { MatFormField } from '@angular/material';
import { NgControl } from '@angular/forms';
export declare class DefaultFormErrorsDirective implements AfterViewInit {
    private formField;
    private el;
    ngControl: NgControl;
    constructor(formField: MatFormField, el: ElementRef);
    ngAfterViewInit(): void;
    firstError(): any;
    invalid(): boolean;
    errorMessage(errorType: any, e: any): string;
    errorLabel(): string;
}