code: def same_run_eval(black_num=0, white_num=0, completions=4):
      
      if black_num <= 0 or white_num <= 0:
          print("Need real model numbers")
          return
  
      b = fsdb.get_model(black_num)
      w = fsdb.get_model(white_num)
  
      b_model_path = os.path.join(fsdb.models_dir(), b)
      w_model_path = os.path.join(fsdb.models_dir(), w)
      flags_path = fsdb.eval_flags_path()
  
      obj = launch_eval_job(b_model_path + ".pb",
                             w_model_path + ".pb",
                             "{:d}-{:d}".format(black_num, white_num),
                             bucket_name=flags.FLAGS.bucket_name,
                             flags_path=flags_path,
                             completions=completions)
  
      # Fire spams the retval to stdout, so...
      return "{} job launched ok".format(obj[1].metadata.name)
docs: Shorthand to spawn a job matching up two models from the same run,
      identified by their model number