import type { AppServer } from '.';
import type { DomainHandlerFunctionArgs } from '../commands/types';
import type { SettingsType2 } from '../conf/types';
import type { Domain } from '../domain';
/**
 * This will initialize the app respecting it's lifecycle.
 *
 * The lifecycle of the app is:
 * - `load`: Loads the constructor.
 * - `start`: Starts the appServer.
 * - `close`: Stops the appServer. The close method is called when SIGINT is received. It's really
 * important that the library author correctly implement this method, otherwise the app might not
 * close correctly.
 *
 * @param domains - The domains to be loaded.
 * @param settings - All of the settings of the application.
 * @param commandLineArgs - The command line arguments.
 * @param appServer - The app server to be initialized.
 */
export declare function initializeApp(domains: Domain[], settings: SettingsType2, commandLineArgs: DomainHandlerFunctionArgs['commandLineArgs'], appServer: typeof AppServer): Promise<() => Promise<void>>;
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