code: def _os_release_info(self):
          
          if os.path.isfile(self.os_release_file):
              with open(self.os_release_file) as release_file:
                  return self._parse_os_release_content(release_file)
          return {}
docs: Get the information items from the specified os-release file.
  
          Returns:
              A dictionary containing all information items.