adding a version

Find your file set:

file_set = FileSet.find 'PID'

Find your user:

user = User.find(CRITERIA)

Create an actor:

actor = Hyrax::Actors::FileSetActor.new(file_set, user)

Create the file:

file = Hyrax::UploadedFile.create( file: 'PATH_TO_FILE', user_id: user.id)

Update the file:

actor.update_content(file.file)

Done!