import { AfterContentInit, OnDestroy, OnInit, QueryList } from '@angular/core';
import { FormControl } from '@angular/forms';
import { FeedbackComponent } from './feedback.component';
export declare class InvalidFeedbackComponent implements AfterContentInit, OnInit, OnDestroy {
    for: FormControl;
    feedbacks: QueryList<FeedbackComponent>;
    private statChangeSub;
    ngOnInit(): void;
    ngAfterContentInit(): void;
    ngOnDestroy(): void;
    updateFeedback(): void;
}