import { JupyterFrontEndPlugin } from '@jupyterlab/application';
/**
 * Add two icon buttons to the top bar that toggle the left and right side
 * areas, mirroring the macOS-style sidebar buttons: a left-sidebar button at
 * the leading edge and a right-sidebar button at the far edge.
 *
 * Each is a `CommandToolbarButton` wrapping an existing
 * `application:toggle-{left,right}-area` command, so clicking it runs the
 * same toggle as the View menu and the button reflects the command's state —
 * pressed while the matching sidebar is open, and disabled when the area is
 * empty. Note xtralab ships nothing in the right area by default (the
 * property inspector, table of contents and debugger are all disabled), so
 * the right button stays disabled until a widget is moved or added there.
 */
declare const plugin: JupyterFrontEndPlugin<void>;
export default plugin;