code: def convert_to_experiment_list(experiments):
      
      exp_list = experiments
  
      # Transform list if necessary
      if experiments is None:
          exp_list = []
      elif isinstance(experiments, Experiment):
          exp_list = [experiments]
      elif type(experiments) is dict:
          exp_list = [
              Experiment.from_json(name, spec)
              for name, spec in experiments.items()
          ]
  
      # Validate exp_list
      if (type(exp_list) is list
              and all(isinstance(exp, Experiment) for exp in exp_list)):
          if len(exp_list) > 1:
              logger.warning("All experiments will be "
                             "using the same SearchAlgorithm.")
      else:
          raise TuneError("Invalid argument: {}".format(experiments))
  
      return exp_list
docs: Produces a list of Experiment objects.
  
      Converts input from dict, single experiment, or list of
      experiments to list of experiments. If input is None,
      will return an empty list.
  
      Arguments:
          experiments (Experiment | list | dict): Experiments to run.
  
      Returns:
          List of experiments.