Is there a migration XML demo template file with 100-1000k jira tickets in it for test?

We are trying to test a new plugin of ours which will require us to run it in an instance with more than 3 digit projects, and 6-7 digits of jira tickets within a give jira instance.

Is there any jira export file example we could be using? Something the community is using by any chance?

I was trying to look this up in github but no luck.