How to response a command interaction with an embed? Handle more than 1 bot?

[enrollment]

I'm struggling a bit using your package, i'm not experienced on this type of packages.
I was able make it work with a simple /ping command that returns 'pong'.
In the listener method replyContent, i'm only able to return a string or null. How do I return an embed? Do I need to create an array with your EmbedBuilder and then serialize it?

Also, i'm interested in the possiblity of handling multiple bots at once for my users. (Users will provide their bot details and the application will respond with their specific bot). Is that possible? Saw another user asked for this feature and you've said it would be tricky for command interactions.
Want to know how would you approach this feature using your package.

Thanks in advance.