🤔 [QUESTION] Anyone here was able to use Donut chart ?

### 🐛 Question description [Please make everyone to understand it]
Was trying to use the Donut chart lately in my react web-app, and it say's "Module '"@antv/g2plot"' has no exported member 'Donut'"

https://antv-g2plot-v1.gitee.io/en/examples/pie/donut#ring-basic

### 💻 Link to minimal reproduction

Please provide a link by forking these links [g2plot](https://codesandbox.io/s/g2plot-reproduction-template-gyej1) or GitHub repo. What is a minimal reproduction, and why is it required?

### 🏞 Expected result

### 🚑 Any additional [like screenshots]

* **G2Plot Version**:
* **Platform**:

Start with the linked donut chart example and the reported @antv/g2plot export error in a minimal reproduction. Check the installed G2Plot version and how the example is imported; the issue is done when the donut chart can be used without the reported TypeScript error.

Written by the indexing model from the issue text.