docs: def RawData(self):
      """Yields the valus in each section."""
      result = collections.OrderedDict()
  
      i = 0
      while True:
        try:
          name, value, value_type = winreg.EnumValue(self._AccessRootKey(), i)
          # Only support strings here.
          if value_type == winreg.REG_SZ:
            precondition.AssertType(value, Text)
            result[name] = value
        except OSError:
          break
  
        i += 1
  
      return result