import { ICommandsRegistry } from "@inweb/viewer-core";
/**
 * Viewer commands registry. Use this registry to register custom commands.
 *
 * To implement custom command:
 *
 * 1. Define a command handler with a first `viewer` parameter.
 * 2. Register command handler in the commands registry by calling the {@link commands.registerCommand}.
 *
 * @example Implementing a custom command.
 *
 * ```javascript
 * import { commands, Viewer } from "@inweb/viewer-visualize";
 *
 * function commandHandler(viewer: Viewer, name = "world"): void {
 *   console.log(`Hello ${name}!!!`);
 * }
 *
 * commands.registerCommand("sayHello", commandHandler);
 * ```
 *
 * @example Calling a custom command.
 *
 * ```javascript
 * viewer.executeCommand("sayHello", "user");
 * ```
 */
export declare const commands: ICommandsRegistry;