How to get the existing embed tokens?

Hi,

I have been working on an integration of Power BI reports to a website, and generated embed tokens according to https://docs.microsoft.com/en-us/rest/api/power-bi/embedtoken/reports_generatetokeningroup

I have created a big number of tokens during development, and now I have depleted all the quota, resulting to an error message:

You have exceeded the amount of embed token that can be generated on a shared capacity. You need to purchase Azure capacities to generate embed tokens. See...

The problem is that I haven't saved the tokens locally. Is there any way to get the existing tokens and reuse them? I looked through the API but could not find anything relevant, or maybe I missed something?

Thank you