code: def additions_version():
      '''
      Check VirtualBox Guest Additions version.
  
      CLI Example:
  
      .. code-block:: bash
  
          salt '*' vbox_guest.additions_version
  
      :return: version of VirtualBox Guest Additions or False if they are not installed
      '''
      try:
          d = _additions_dir()
      except EnvironmentError:
          return False
      if d and os.listdir(d):
          return re.sub(r'^{0}-'.format(_additions_dir_prefix), '',
                  os.path.basename(d))
      return Falsf additions_version():
      '''
      Check VirtualBox Guest Additions version.
  
      CLI Example:
  
      .. code-block:: bash
  
          salt '*' vbox_guest.additions_version
  
      :return: version of VirtualBox Guest Additions or False if they are not installed
      '''
      try:
          d = _additions_dir()
      except EnvironmentError:
          return False
      if d and os.listdir(d):
          return re.sub(r'^{0}-'.format(_additions_dir_prefix), '',
                  os.path.basename(d))
      return False
docs: Check VirtualBox Guest Additions version.
  
      CLI Example:
  
      .. code-block:: bash
  
          salt '*' vbox_guest.additions_version
  
      :return: version of VirtualBox Guest Additions or False if they are not installed