box_previous_versions returns a
data.frame containing information on a file's previous
versions on box.com. No information about the current version of the file is
returned.
box_previous_versions(file_id)data.frame containing information about previous
versions of the file (if available). Importantly, it contains the
file_version_id, which can be passed to box_dl.
versions method.
https://developers.box.com/docs/#files-view-versions-of-a-file
box_dl