code: def create_trial_from_spec(spec, output_path, parser, **trial_kwargs):
      
      try:
          args = parser.parse_args(to_argv(spec))
      except SystemExit:
          raise TuneError("Error parsing args, see above message", spec)
      if "resources_per_trial" in spec:
          trial_kwargs["resources"] = json_to_resources(
              spec["resources_per_trial"])
      return Trial(
          # Submitting trial via server in py2.7 creates Unicode, which does not
          # convert to string in a straightforward manner.
          trainable_name=spec["run"],
          # json.load leads to str -> unicode in py2.7
          config=spec.get("config", {}),
          local_dir=os.path.join(args.local_dir, output_path),
          # json.load leads to str -> unicode in py2.7
          stopping_criterion=spec.get("stop", {}),
          checkpoint_freq=args.checkpoint_freq,
          checkpoint_at_end=args.checkpoint_at_end,
          keep_checkpoints_num=args.keep_checkpoints_num,
          checkpoint_score_attr=args.checkpoint_score_attr,
          export_formats=spec.get("export_formats", []),
          # str(None) doesn't create None
          restore_path=spec.get("restore"),
          upload_dir=args.upload_dir,
          trial_name_creator=spec.get("trial_name_creator"),
          loggers=spec.get("loggers"),
          # str(None) doesn't create None
          sync_function=spec.get("sync_function"),
          max_failures=args.max_failures,
          **trial_kwargs)
docs: Creates a Trial object from parsing the spec.
  
      Arguments:
          spec (dict): A resolved experiment specification. Arguments should
              The args here should correspond to the command line flags
              in ray.tune.config_parser.
          output_path (str); A specific output path within the local_dir.
              Typically the name of the experiment.
          parser (ArgumentParser): An argument parser object from
              make_parser.
          trial_kwargs: Extra keyword arguments used in instantiating the Trial.
  
      Returns:
          A trial object with corresponding parameters to the specification.