React panel development in v6 beta

Just got v6 beta running and i’m excited to try out a new react panel. Can anyone point me an an example of how to implement a simple hello world type panel?


welp here are some examples

I tried using the react-plugins-examples, while the panel does get registered and I can see it in the visualizations, but when I select it, I get the error as below:
Failed to import plugin module TypeError: c.ReactPanelPlugin is not a constructor

Please help.
Note: I am using the Grafana v6.2.0-beta1 and grafana/ui @ 6.0.1-alpha.0