import type { ISettingRegistry } from '@jupyterlab/settingregistry';
/**
 * Schema id the launcher's `agents`/`editors` settings live under.
 */
export declare const LAUNCHER_PLUGIN_ID = "xtralab:launcher";
/**
 * Register a `fetch` transform that injects xtralab's built-in agent and
 * editor lists as the schema defaults for the `xtralab:launcher` settings, so
 * the Settings Editor shows the shipped list.
 *
 * The schema declares `jupyter.lab.transform: true`, so the registry defers
 * loading the plugin until a transform is registered: callers must invoke this
 * before their first `settingRegistry.load(LAUNCHER_PLUGIN_ID)`. Idempotent, so
 * the two plugins that load these settings can both call it regardless of
 * activation order.
 */
export declare function registerLauncherSchemaDefaults(settingRegistry: ISettingRegistry): void;