code: def additions_umount(mount_point):
      '''
      Unmount VirtualBox Guest Additions CD from the temp directory.
  
      CLI Example:
  
      .. code-block:: bash
  
          salt '*' vbox_guest.additions_umount
  
      :param mount_point: directory VirtualBox Guest Additions is mounted to
      :return: True or an string with error
      '''
      ret = __salt__['mount.umount'](mount_point)
      if ret:
          os.rmdir(mount_point)
      return ref additions_umount(mount_point):
      '''
      Unmount VirtualBox Guest Additions CD from the temp directory.
  
      CLI Example:
  
      .. code-block:: bash
  
          salt '*' vbox_guest.additions_umount
  
      :param mount_point: directory VirtualBox Guest Additions is mounted to
      :return: True or an string with error
      '''
      ret = __salt__['mount.umount'](mount_point)
      if ret:
          os.rmdir(mount_point)
      return ret
docs: Unmount VirtualBox Guest Additions CD from the temp directory.
  
      CLI Example:
  
      .. code-block:: bash
  
          salt '*' vbox_guest.additions_umount
  
      :param mount_point: directory VirtualBox Guest Additions is mounted to
      :return: True or an string with error