import { OnDestroy } from '@angular/core';
import { FormControl } from '@angular/forms';
import { Observable } from 'rxjs';
/**
 * This logic with managing the control-status is adopted from Clarity Design. All props go to their team and contributors
 */
export declare enum ControlStatus {
    NONE = "NONE",
    INVALID = "INVALID",
    VALID = "VALID"
}
export declare class ControlService implements OnDestroy {
    currentControl: FormControl;
    get currentStatus$(): Observable<ControlStatus>;
    private _currentStatus$;
    private subscription;
    constructor();
    ngOnDestroy(): void;
    init(control: FormControl): void;
    triggerStatusChange(): void;
}