gnome-shell/js/extensions/extension.js

import {ExtensionBase, setExtensionManager} from './sharedInternals.js';

export {gettext, ngettext, pgettext} from './sharedInternals.js';

const {extensionManager} = imports.ui.main;
setExtensionManager(extensionManager);

export class Extension extends ExtensionBase {
    enable() {
    }

    disable() {
    }

    /**
     * Open the extension's preferences window
     */
    openPreferences() {
        extensionManager.openExtensionPrefs(this.uuid, '', {});
    }
}