code: def _init_map(self):
          
          super(CalculationInteractionQuestionFormRecord, self)._init_map()
          QuestionTextFormRecord._init_map(self)
          QuestionFilesFormRecord._init_map(self)
          self.my_osid_object_form._my_map['text']['text'] = ''
          self.my_osid_object_form._my_map['variables'] = \
              self._variables_metadata['default_object_values'][0]
          self.my_osid_object_form._my_map['expression'] = \
              self._expression_metadata['default_string_values'][0]
docs: stub