docs: def set_max_string_length(self, length=None):
          """stub"""
          if self.get_max_string_length_metadata().is_read_only():
              raise NoAccess()
          if not self.my_osid_object_form._is_valid_cardinal(
                  length,
                  self.get_max_string_length_metadata()):
              raise InvalidArgument()
          if self.my_osid_object_form.min_string_length is not None and \
                  length < self.my_osid_object_form.min_string_length + 1:
              raise InvalidArgument()
          self.my_osid_object_form._my_map['maxStringLength'] = length
          self._max_string_length = length