import { Readable } from "stream";
import { BathymetryData } from "../types.js";
import * as GeoJSON from "geojson";
import { JsonStreamStringify } from "json-stream-stringify";
/**
 * Converts BathymetryData objects into a GeoJSON FeatureCollection stream.
 */
export declare function toGeoJSON(data: Readable, additionalFields?: object): JsonStreamStringify;
/** Converts a Bathymetry data point to a GeoJSON Feature */
export declare function toFeature({ latitude, longitude, depth, timestamp, }: BathymetryData): GeoJSON.Feature;
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