code: def get_experiment_spec(self, matrix_declaration):
          
          parsed_data = Parser.parse(self, self._data, matrix_declaration)
          del parsed_data[self.HP_TUNING]
          validator.validate(spec=self, data=parsed_data)
          return ExperimentSpecification(values=[parsed_data, {'kind': self._EXPERIMENT}])
docs: Returns an experiment spec for this group spec and the given matrix declaration.