import { Observable } from 'rxjs';
import { MonoTypeChangeSetOperatorFunction } from '../ChangeSetOperatorFunction';
/**
 *  Creates a filtered stream which can be dynamically filtered
 * @typeparam TObject The type of the object.
 * @typeparam TKey The type of the key.
 * @param predicateChanged Observable to change the underlying predicate.
 * @param reapplyFilter Observable to re-evaluate whether the filter still matches items. Use when filtering on mutable values
 */
export declare function filterDynamic<TObject, TKey>(predicateChanged: Observable<(value: TObject) => boolean>, reapplyFilter?: Observable<unknown>): MonoTypeChangeSetOperatorFunction<TObject, TKey>;
/**
 *  Creates a filtered stream which can be dynamically filtered
 * @typeparam TObject The type of the object.
 * @typeparam TKey The type of the key.
 * @param predicateChanged Observable to change the underlying predicate.
 * @param reapplyFilter Observable to re-evaluate whether the filter still matches items. Use when filtering on mutable values
 */
export declare function filterDynamic<TObject, TKey>(predicateChanged: Observable<unknown>, reapplyFilter?: Observable<unknown>): MonoTypeChangeSetOperatorFunction<TObject, TKey>;
/**
 *  Filters the specified source.
 * @typeparam TObject The type of the object.
 * @typeparam TKey The type of the key.
 * @param predicate The filter.
 */
export declare function filter<TObject, TKey>(predicate: (value: TObject) => boolean): MonoTypeChangeSetOperatorFunction<TObject, TKey>;