import { Observable, Subject } from 'rxjs';
export declare function updateSubjOnChange<T extends Record<K, V>, K extends keyof T, V>(obj: T, fieldName: K, subj$: Subject<T[K]>, beforeApplyFn?: (v: T[K]) => T[K]): T;
export declare function _debugTracked<T>(source$: Observable<T>, name?: string): Observable<T>;