Request for autoretry (errors with http 429)

[DataEconomistDK]

Hi,

Love your package! :)

I have a request for autoretry when hitting dropbox http errors, for me this is especially important for http 429, which is to "too_many_requests" or "too_many_write_operations". Link for more info: https://developers.dropbox.com/dbx-performance-guide.

From dropbox:
"Rate limited responses always include a Retry-After header that provides the limit in seconds that your app would need to wait before retrying to ensure a successful response."

Therefore it should be possible to enable auto retry. Or maybe you can provide some sort of quick fix for efficient retry I can code into my app.

Hope you can help out :)