code: def run_gpt2_test(self, test_config, output):
      ds_flag = (
          "-d " + test_config["json"]
          if test_config["deepspeed"]
          else ""
      )
      ckpt_num = (
          test_config["ckpt_num_layers"]
          if "ckpt_num_layers" in test_config
          else 1
      )
      other_args = (
          "-o " + test_config["other_args"]
          if "other_args" in test_config
          else ""
      )
  
      cmd = "./ds_gpt2_test.sh -m {0} -g {1} -n {2} -b {3} -s {4} -l {5} -h {6} -q {7} -e {8} -c {9} {10} {11}".format(
          test_config["mp"],
          test_config["gpus"],
          test_config["nodes"],
          test_config["bs"],
          test_config["steps"],
          test_config["layers"],
          test_config["hidden_size"],
          test_config["seq_length"],
          test_config["heads"],
          ckpt_num,
          other_args,
          ds_flag,
      )
  
      self.ensure_directory_exists(output)
      with open(output, "w") as f:
          print(cmd)
          subprocess.run(
              cmd,
              shell=True,
              check=False,
              executable="/bin/bash",
              stdout=f,
              stderr=f,
          )
  
file_path: H2O/h2o_flexgen/benchmark/third_party/DeepSpeed/tests/model/Megatron_GPT2/test_common.py
imports: import unittest
  import subprocess
  import os
  import time
label_desc: Use image node_id 5 for calling the BaseTestCase obj's underlying member method code with example usage: obj.run_gpt2_test(test_config, output) without return types