import { OnInit, ChangeDetectorRef, EventEmitter } from '@angular/core';
import { Survey } from '../../../../classes';
import { Subscription } from 'rxjs';
import { FormGroup, FormControl } from '@angular/forms';
import { ReplyService } from '../../../../services';
export declare class HeaderComponent implements OnInit {
    reply: ReplyService;
    private cdRef;
    survey: Survey;
    replyFormGroup: FormGroup;
    onSubmit: EventEmitter<{}>;
    subscriptions: Subscription[];
    constructor(reply: ReplyService, cdRef: ChangeDetectorRef);
    open_at: FormControl;
    close_at: FormControl;
    removeControllers(): void;
    ngOnInit(): void;
    ngOnDestroy(): void;
    refreshView(): void;
    submit(): void;
}