| packageName | The name of the package to embed. This package must be a direct dependency of the Project. ArgumentException is thrown if packageName is null or empty. |
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.