docs: def version(*names, **kwargs):
      '''
      Returns a string representing the package version or an empty string if not
      installed. If more than one package name is specified, a dict of
      name/version pairs is returned.
  
      Args:
          name (str): One or more package names
  
      Kwargs:
          saltenv (str): The salt environment to use. Default ``base``.
          refresh (bool): Refresh package metadata. Default ``False``.
  
      Returns:
          str: version string when a single package is specified.
          dict: The package name(s) with the installed versions.
  
      .. code-block:: cfg
  
          {['<version>', '<version>', ]} OR
          {'<package name>': ['<version>', '<version>', ]}
  
      CLI Example:
  
      .. code-block:: bash
  
          salt '*' pkg.version <package name>
          salt '*' pkg.version <package name01> <package name02>
  
      '''
      # Standard is return empty string even if not a valid name
      # TODO: Look at returning an error across all platforms with
      # CommandExecutionError(msg,info={'errors': errors })
      # available_pkgs = get_repo_data(saltenv).get('repo')
      # for name in names:
      #    if name in available_pkgs:
      #        ret[name] = installed_pkgs.get(name, '')
  
      saltenv = kwargs.get('saltenv', 'base')
      installed_pkgs = list_pkgs(saltenv=saltenv, refresh=kwargs.get('refresh', False))
  
      if len(names) == 1:
          return installed_pkgs.get(names[0], '')
  
      ret = {}
      for name in names:
          ret[name] = installed_pkgs.get(name, '')
      return ret