Feature Request: Support for prompting certain arguments

[hashb]

Thanks for this awesome library! I was wondering if it is possible to add support for prompting user for certain arguments like how click implements it, see https://click.palletsprojects.com/en/8.0.x/options/#prompting

or

https://typer.tiangolo.com/tutorial/options/prompt/

[brentyi]

Hi @hashb! Thanks for filing this issue.

An API like Typer's seems doable. I have some hesitations about feature creep/maintenance, but would be open to giving it a try. Things are busy and I don't have an ETA though, so if you have time for a PR I could also review. 🙂