import type PortalItem from "@arcgis/core/portal/PortalItem";
import type { RequestHelper } from "@vertigis/arcgis-extensions/utilities/RequestHelper";
import type { AppConfig } from "../AppConfig";
/**
 * A component that can provide access to configuration that is externally
 * referenced in an App.
 */
export interface ConfigResolver {
    /**
     * Gets App JSON configuration by URL.
     *
     * @param url The URL corresponding to the App configuration to get.
     * @returns The requested App configuration.
     * @throws {NotFoundError} The App configuration couldn't be found.
     * @throws {AccessDeniedError} The current user does not have permission to
     *   access the given App configuration.
     */
    getAppConfig(url: string | PortalItem): Promise<AppConfig>;
}
/**
 * Default config resolver that fetches configuration from a REST endpoint or a
 * portal item.
 */
export declare class DefaultConfigResolver implements ConfigResolver {
    /**
     * The request helper to use when making requests.
     */
    requestHelper: RequestHelper;
    /**
     * @inheritdoc
     */
    getAppConfig(url: string | PortalItem): Promise<AppConfig>;
}