| packageName | 要嵌入的包的名称。包必须是项目的直接依赖关系。 |
EmbedRequest 一个 EmbedRequest 实例，可用于监控异步操作，并在操作完成时获取结果。
在项目中嵌入包。
The Package Manager makes a copy of the original package inside the Packages folder of the Project. All files inside that package become writable.
Note: Make sure any other Client operations have completed before calling this method. For more information, see the note on the Client class reference page.