import { AfterContentInit, ElementRef, OnDestroy, Renderer2 } from '@angular/core';
import { FormControl, FormControlDirective, FormControlName, NgModel } from '@angular/forms';
import { Subject } from 'rxjs/Subject';
export declare class NgFormControlErrorsContent implements AfterContentInit, OnDestroy {
    private renderer;
    checkOnDirty: boolean;
    _formCtrlName: FormControlName;
    _formCtrlDir: FormControlDirective;
    _ngModel: NgModel;
    _elFormCtrlName: ElementRef;
    _elFormCtrlDir: ElementRef;
    _elNgModel: ElementRef;
    onChange$: Subject<{}>;
    elFormCtrlBlurListener: Function;
    elFormCtrlFocusListener: Function;
    elFormCtrlInputListener: Function;
    constructor(renderer: Renderer2);
    ngAfterContentInit(): void;
    readonly invalid: boolean;
    initOnChange(): void;
    readonly formControl: FormControl | null;
    readonly elFormControl: HTMLElement | null;
    unbindElFormCtrlBlurListener(): void;
    unbindElFormCtrlFocusListener(): void;
    unbindElFormCtrlInputListener(): void;
    ngOnDestroy(): void;
}