/**
 * Helps you find closest facilities around any location (incident) on a network.
 *
 * When finding closest facilities, you can specify various [parameters](https://developers.arcgis.com/javascript/latest/api-reference/esri-rest-support-ClosestFacilityParameters.html)
 * including how many to facilities to find and whether the direction of
 * travel is toward or away from them. Once you've found the closest facilities, you can display
 * the best route to or from them, return the travel cost for each route, and display directions
 * to each facility using the [ClosestFacilitySolveResult](https://developers.arcgis.com/javascript/latest/api-reference/esri-rest-support-ClosestFacilitySolveResult.html).
 *
 * You can also specify a cutoff cost beyond which ArcGIS Network Analyst should not search for a
 * facility. For instance, you can set up a closest facility problem to search for hospitals
 * within a 15-minute drive time of the site of an accident. Any hospitals that take longer than
 * 15 minutes to reach will not be included in the results.
 *
 * Parameters must be defined using [ClosestFacilityParameters](https://developers.arcgis.com/javascript/latest/api-reference/esri-rest-support-ClosestFacilityParameters.html)
 * and input to the [solve()](https://developers.arcgis.com/javascript/latest/api-reference/esri-rest-closestFacility.html#solve) method.
 *
 * @since 4.19
 * @see [ClosestFacilityParameters](https://developers.arcgis.com/javascript/latest/api-reference/esri-rest-support-ClosestFacilityParameters.html)
 * @see [ClosestFacilitySolveResult](https://developers.arcgis.com/javascript/latest/api-reference/esri-rest-support-ClosestFacilitySolveResult.html)
 */
import type ClosestFacilityParameters from "./support/ClosestFacilityParameters.js";
import type ClosestFacilitySolveResult from "./support/ClosestFacilitySolveResult.js";
import type { RequestOptions } from "../request/types.js";

/**
 * Solves the closest facility.
 *
 * @param url - URL to the ArcGIS Server REST resource that represents a network analysis service.
 * @param params - Defines the parameters of the closest facility analysis.
 * @param requestOptions - Additional [options](https://developers.arcgis.com/javascript/latest/api-reference/esri-request.html#request) to be used for the data request.
 * @returns When resolved, returns an instance of [ClosestFacilitySolveResult](https://developers.arcgis.com/javascript/latest/api-reference/esri-rest-support-ClosestFacilitySolveResult.html).
 * @example
 * solve(url, params).then(function(solveResult){
 *   // Do something with the solveResults here
 * });
 */
export function solve(url: string, params: ClosestFacilityParameters, requestOptions: RequestOptions | null | undefined): Promise<ClosestFacilitySolveResult>;