Steps to Get a Free Embed Trial Tokens with a Pro License

Hi PowerBI Community,

I have a Pro License, and I would to experiment embedding with PowerBI.

I have completed the following steps:

1. Create a new 'Power BI Embedded' resource.
2. Setup Power BI embedding environment from this instruction.

Based on this doc, I can get free embed trial tokens with a Pro License for development testing. Can someone direct me on how I can get that?

Thank!