docs: def _init_map(self):
          """call these all manually because non-cooperative"""
          DecimalAnswerFormRecord._init_map(self)
          DecimalValuesFormRecord._init_map(self)
          TextAnswerFormRecord._init_map(self)
          TextsFormRecord._init_map(self)
          super(edXNumericResponseAnswerFormRecord, self)._init_map()