code: def load_results(result_files, options, run_set_id=None, columns=None,
                   columns_relevant_for_diff=set()):
      
      return parallel.map(
          load_result,
          result_files,
          itertools.repeat(options),
          itertools.repeat(run_set_id),
          itertools.repeat(columns),
          itertools.repeat(columns_relevant_for_diff))
docs: Version of load_result for multiple input files that will be loaded concurrently.