import TileLayer from 'ol/layer/Tile.js';
import WMTS from 'ol/source/WMTS.js';
import ServerOgc from '../models/serverogc.js';
declare class LegendHelper {
    /**
     * Get the WMS legend URL.
     * @param serverOgc The base url of the wms service.
     * @param layerName The name of a wms layer.
     * @param options to create the legend url.
     * @returns The legend URL or undefined.
     */
    static readonly getWMSLegendURL: (serverOgc: ServerOgc, layerName: string, options?: WMSLegendURLOptions) => string | undefined;
    /**
     * Retrieves the legend URL for a given WMTS tile layer.
     * @param {TileLayer<WMTS>} olayer - The OpenLayers tile layer object.
     * @returns The legend URL or undefined if not found.
     */
    static readonly getWMTSLegendURL: (olayer: TileLayer<WMTS>) => string | undefined;
}
/**
 * Options to get WMS legend URL.
 * @property legendRule parameters to add to the returned URL.
 * @property legendWidth the legend width.
 * @property legendHeight the legend height.
 * @property serverType the OpenLayers server type.
 * @property dpi the DPI.
 * @property bbox the bbox.
 * @property srs The projection code.
 * @property additionalQueryString Additional query string parameters.
 */
export interface WMSLegendURLOptions {
    scale?: number;
    legendRule?: string;
    legendWidth?: number;
    legendHeight?: number;
    serverType?: string;
    dpi?: number;
    bbox?: number[];
    srs?: string;
    additionalQueryString?: Record<string, unknown>;
}
export default LegendHelper;