docs: def init(*args, **kwargs):
      """Returns an initialized instance of the Batch class"""
      # set up cellpy logger
      default_log_level = kwargs.pop("default_log_level", None)
      import cellpy.log as log
      log.setup_logging(custom_log_dir=prms.Paths["filelogdir"],
                        default_level=default_log_level)
      b = Batch(*args, **kwargs)
      return b