docs: def remove_display_name_by_language(self, language_type):
          """Removes the specified display_name.
  
          raise:  NoAccess - ``Metadata.isRequired()`` is ``true`` or
                  ``Metadata.isReadOnly()`` is ``true``
          *compliance: mandatory -- This method must be implemented.*
  
          """
          if self.get_display_names_metadata().is_read_only():
              raise NoAccess()
          if not isinstance(language_type, Type):
              raise InvalidArgument('language_type must be instance of Type')
          self.my_osid_object_form._my_map['displayNames'] = [t
                                                              for t in self.my_osid_object_form._my_map['displayNames']
                                                              if t['languageTypeId'] != str(language_type)]