import type { ArcGISIdentityManager } from "@esri/arcgis-rest-request";
import { IUpdateGroupUsersResult } from "@esri/arcgis-rest-portal";
/**
 * Updates users membership to admin or member, acts as a wrapper for updateUserMemberships from arcgis-rest-portal
 *
 * @export
 * @param {string} id Group id that the members belong to
 * @param {string[]} users Array of usernames to update membership level on
 * @param {("member" | "admin")} newMemberType The type of user to update the users to
 * @param {ArcGISIdentityManager} authentication authentication
 * @return {*}  {Promise<IUpdateGroupUsersResult>}
 */
export declare function updateUserMembership(id: string, users: string[], newMemberType: "member" | "admin", authentication: ArcGISIdentityManager): Promise<IUpdateGroupUsersResult>;