import { AllGeoJSON } from '@turf/helpers';

/**
 * Takes a GeoJSON Feature or FeatureCollection and truncates the precision of the geometry.
 *
 * @function
 * @param {GeoJSON} geojson any GeoJSON Feature, FeatureCollection, Geometry or GeometryCollection.
 * @param {Object} [options={}] Optional parameters
 * @param {number} [options.precision=6] coordinate decimal precision
 * @param {number} [options.coordinates=3] maximum number of coordinates (primarly used to remove z coordinates)
 * @param {boolean} [options.mutate=false] allows GeoJSON input to be mutated (significant performance increase if true)
 * @returns {GeoJSON} layer with truncated geometry
 * @example
 * var point = turf.point([
 *     70.46923055566859,
 *     58.11088890802906,
 *     1508
 * ]);
 * var options = {precision: 3, coordinates: 2};
 * var truncated = turf.truncate(point, options);
 * //=truncated.geometry.coordinates => [70.469, 58.111]
 *
 * //addToMap
 * var addToMap = [truncated];
 */
declare function truncate<T extends AllGeoJSON>(geojson: T, options?: {
    precision?: number;
    coordinates?: number;
    mutate?: boolean;
}): T;

export { truncate as default, truncate };