import { FeatureCollection, Polygon, MultiPolygon, Feature } from 'geojson';

/**
 * Finds the difference between multiple {@link Polygon|polygons} by clipping the subsequent polygon from the first.
 *
 * @function
 * @param {FeatureCollection<Polygon|MultiPolygon>} features input Polygon features
 * @returns {Feature<Polygon|MultiPolygon>|null} a Polygon or MultiPolygon feature showing the area of `polygon1` excluding the area of `polygon2` (if empty returns `null`)
 * @example
 * var polygon1 = turf.polygon([[
 *   [128, -26],
 *   [141, -26],
 *   [141, -21],
 *   [128, -21],
 *   [128, -26]
 * ]], {
 *   "fill": "#F00",
 *   "fill-opacity": 0.1
 * });
 * var polygon2 = turf.polygon([[
 *   [126, -28],
 *   [140, -28],
 *   [140, -20],
 *   [126, -20],
 *   [126, -28]
 * ]], {
 *   "fill": "#00F",
 *   "fill-opacity": 0.1
 * });
 *
 * var difference = turf.difference(turf.featureCollection([polygon1, polygon2]));
 *
 * //addToMap
 * var addToMap = [polygon1, polygon2, difference];
 */
declare function difference(features: FeatureCollection<Polygon | MultiPolygon>): Feature<Polygon | MultiPolygon> | null;

export { difference as default, difference };