code: def test_optimizer_scheduler(self):
      test_config = {
          "mp": 1,
          "gpus": 1,
          "nodes": 1,
          "bs": 4,
          "steps": 20,
          "layers": LAYERS,
          "hidden_size": HIDDEN_SIZE,
          "seq_length": SEQ_LEN,
          "heads": ATTN_HEADS,
          "deepspeed": False,
          "json": "ds_config_func_scheduler.json",
      }
  
      succ = self.run_test(test_config, 0.01)
      # assure no crash.
      self.assertTrue(True)
  
imports: import unittest
  import os
  import re
  from .test_common import BaseTestCase
label_desc: Use image node_id 22 for calling the GPT2FuncTestCase obj's underlying member method code with example usage: obj.test_optimizer_scheduler() without return types