docs: def get_common_paths_ancestor(*args):
      """
      Gets common paths ancestor of given paths.
  
      Usage::
  
          >>> get_common_paths_ancestor("/Users/JohnDoe/Documents", "/Users/JohnDoe/Documents/Test.txt")
          u'/Users/JohnDoe/Documents'
  
      :param \*args: Paths to retrieve common ancestor from.
      :type \*args: [unicode]
      :return: Common path ancestor.
      :rtype: unicode
      """
  
      path_ancestor = os.sep.join(get_common_ancestor(*[path.split(os.sep) for path in args]))
      LOGGER.debug("> Common Paths Ancestor: '{0}'".format(path_ancestor))
      return path_ancestor