import { AellaFilterDefinition } from '../filter-bar.models';
/**
 * Serialize a single AellaFilterDefinition into a query string fragment.
 *
 * Output syntax (Lucene-like, compatible with Elasticsearch query_string):
 *
 *   checkbox/radio/autocomplete/tree/query:
 *     field:("val1" OR "val2")
 *     NOT field:("val3")
 *
 *   text-input:
 *     field:"some text"
 *
 *   number-input:
 *     field:42
 *
 *   toggle:
 *     field:true
 *
 *   number-range / number-range-slider:
 *     field:[0 TO 80]
 *     NOT field:[10 TO 20]
 *
 *   date-range:
 *     field:["2024-01-01T00:00:00.000Z" TO "2024-12-31T23:59:59.999Z"]
 *
 * Returns empty string if the filter has no active values.
 */
export declare function filterToQueryString(filter: AellaFilterDefinition): string;
/**
 * Serialize an array of filters into a full query string.
 * Filters are joined with AND. Empty filters are skipped.
 */
export declare function filtersToQueryString(filters: AellaFilterDefinition[]): string;