code: def add_configurations(self, experiments):
          
          experiment_list = convert_to_experiment_list(experiments)
          for experiment in experiment_list:
              self._trial_generator = itertools.chain(
                  self._trial_generator,
                  self._generate_trials(experiment.spec, experiment.name))
docs: Chains generator given experiment specifications.
  
          Arguments:
              experiments (Experiment | list | dict): Experiments to run.