@abc.abstractmethod<EOL><INDENT>def Open(self, path, ascii_codepage='<STR_LIT>'):<DEDENT>
Opens a Windows Registry file specified by the path.

        Args:
          path (str): path of the Windows Registry file. The path is a Windows
              path relative to the root of the file system that contains the
              specific Windows Registry file, for example:
              C:\\Windows\\System32\\config\\SYSTEM
          ascii_codepage (Optional[str]): ASCII string codepage.

        Returns:
          WinRegistryFile: Windows Registry file or None.