import { Feature, FeatureCollection, MultiPolygon, Polygon } from "geojson";
/**
 * Converts collection of polygons or multipolygons to a single multipolygon
 * @param input array or collection of polygons or multipolygons
 * @returns multipolygon
 */
export declare const toMultiPolygon: (input: FeatureCollection<Polygon | MultiPolygon> | Feature<Polygon | MultiPolygon>[]) => Feature<MultiPolygon>;