import { AbstractControl } from '@angular/forms';
import { Observable } from 'rxjs';
interface DirtyCheckConfig<U = unknown> {
    debounce?: number;
    withDisabled?: boolean;
    useBeforeunloadEvent?: boolean;
    excludeKeys?: Array<keyof U>;
}
export declare function dirtyCheck<U, Config extends U extends object ? DirtyCheckConfig<U> : Omit<DirtyCheckConfig<U>, 'excludeKeys'>>(control: AbstractControl, source: Observable<U>, config?: Config): Observable<boolean>;
export {};