def _CurrentKey(self):
    """Return the current key.

    Returns:
      str, like 'display_name'
    """
    try:
      return self._current_key[-1]
    except __HOLE__:
      if self._current_mode[-1] == 'dict':
        # e.g. <string>foo</string> without <key>..</key> before it.
        raise MalformedPlistError('Missing key element before value element')
      else:
        # Undefined error condition, traceback please.
        raise
dataset/ETHPy150Open google/simian/src/simian/mac/munki/plist.py/ApplePlist._CurrentKey