import { Observable, OperatorFunction } from 'rxjs';
import { IChangeSet } from '../IChangeSet';
import { IQuery } from '../IQuery';
/**
 * The latest copy of the cache is exposed for querying i)  after each modification to the underlying data ii) on subscription
 * @typeparam TObject The type of the object.
 * @typeparam TKey The type of the key.
 * @typeparam TValue The type of the value.
 * @param itemChangedTrigger Should the query be triggered for observables on individual items
 */
export declare function queryWhenChanged<TObject, TKey>(itemChangedTrigger?: (value: TObject) => Observable<unknown>): OperatorFunction<IChangeSet<TObject, TKey>, IQuery<TObject, TKey>>;