/**
 * @packageDocumentation
 * Tools for a web app to become a UI Extensibility Host. Use this library to
 * create a {@link Host} object, which is your interface to declare extension
 * points, instantiate {@link @adobe/uix-guest#GuestServer} objects, connect to
 * them and communicate with them.
 *
 * @remarks
 * A Host is an EventEmitter with a simple query interface. Provide it with a
 * list of extensions from a registry (it will not fetch one itself) and it will
 * load them, receive their registration calls, and make them available for
 * retrieval and use by the extensible app.
 *
 * The Host objects are low-level objects; they are unopinionated with
 * regards to event and lifecycle handling. For use in structured UI frameworks,
 * it will be best to use binding libraries which use these underlying objects.
 *
 * @example
 * Instantiate a Host and feed it some extensions, watching as each loads.
 * ```javascript
 * import { Host } from `@adobe/uix-host`
 *
 * const host = new Host({ hostName: 'example' });
 *
 * const extensions = await fetch(EXTENSION_REGISTRY).then(res => res.json());
 *
 * host.addEventListener('loadallguests', event => {
 *   const { failed, loaded } = event.detail;
 *   failed.forEach(error => console.error('Extension load failed!', error));
 *   loaded.forEach(extension => {
 *     await extension.apis.someNamespace.someMethod();
 *   })
 * })
 * ```
 *
 * @example
 * Load only the guests which have registered the namespace 'appliances' and two
 * specific methods on that namespace.
 * ```javascript
 * host.addEventListener('loadallguests', () => {
 *   const applianceGuests = host.getLoadedGuests({
 *     appliances: ['getRefrigeratorContents', 'getOvenTemp']
 *   });
 *   const ingredients = {};
 *   let allOvensOff = true;
 *   await Promise.all(applianceGuests.map(async guest => {
 *     const foods = await guest.apis.appliances.getRefrigeratorContents();
 *     Object.assign(ingredients, foods);
 *     if ((await guest.getOvenTemp()) > 27) {
 *       allOvensOff = alse;
 *     }
 *   }));
 * })
 * ```
 *
 * A React binding is currently available. See {@link
 * @adobe/uix-host-react#Extensible}, {@link
 * @adobe/uix-host-react#useExtensions}, and {@link
 * @adobe/uix-host-react#GuestUIFrame}.
 *
 */
export * from "./host.js";
export * from "./port.js";
export * from "./extensions-provider/index.js";
export * from "./dom-utils/index.js";
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