code: def invite(name, emails, perm):
      
      with Session() as session:
          try:
              assert perm in ['rw', 'ro'], \
                     'Invalid permission: {}'.format(perm)
              result = session.VFolder(name).invite(perm, emails)
              invited_ids = result.get('invited_ids', [])
              if len(invited_ids) > 0:
                  print('Invitation sent to:')
                  for invitee in invited_ids:
                      print('\t- ' + invitee)
              else:
                  print('No users found. Invitation was not sent.')
          except Exception as e:
              print_error(e)
              sys.exit(1)
docs: Invite other users to access the virtual folder.
  
      \b
      NAME: Name of a virtual folder.
      EMAIL: Emails to invite.