It would be great if `Number` had an `as_str` method if `"arbitrary_precision"` is enabled.

[chanced]

Would you be open to a pull request that added an as_str method to Number if "arbitrary_precision" is enabled?

[dtolnay]

I agree — seems good to me. Please send a PR.

[chanced]

Great, on the way!

By the way, thanks for the awesome work... on all of your crates.