import { OnInit, OnDestroy } from '@angular/core';
import { FieldType } from '@ngx-formly/core';
import { Subscription } from 'rxjs';
export declare class CheckboxesComponent extends FieldType implements OnInit, OnDestroy {
    isInvalid: boolean;
    sub: Subscription;
    ngOnInit(): void;
    private checkIfValid;
    ngOnDestroy(): void;
}