import { OnInit, ChangeDetectorRef } from '@angular/core';
import { Survey } from '../../../../classes';
import { NgModel, FormGroup } from '@angular/forms';
import { Subscription } from 'rxjs';
export declare class SurveyTitleComponent implements OnInit {
    private cdRef;
    title: NgModel;
    survey: Survey;
    composeFormGroup: FormGroup;
    subscriptions: Subscription[];
    constructor(cdRef: ChangeDetectorRef);
    ngOnInit(): void;
    ngOnDestroy(): void;
    private createFormGroup;
    private removeFormGroup;
}