promote_version Method
Promotes a previous file resource version to be the current version.
Syntax
def promote_version(file_id: str, version_id: str) -> None: ...
Remarks
This method promotes a previous version of the file resource specified by FileId to be the current version.
VersionId specifies the version that should be promoted. Box will make a copy of it to use as the new version.
Note that Box only tracks file versions for paid accounts.