Rclone dedupe change new feature

So I just discovered accidently that rclone hashsum SHA256 gdrive: works without having to specify the flag --download as a result maybe it's now time for some improvements to the rclone dedupe command.

I would like to see something like this.

rclone dedupe interactive gdrive: --hashsum SHA256

Additionally I would also like the flag --download from the hashsum command to be added to dedupe so we could do this like.

rclone dedupe interactive gdrive: --hashsum SHA512 --download

So unsupported hash types could be used also.