code: def get_sweep_config_dict(sweep_config_json):
      if sweep_config_json is None:
          return DEFAULT_SWEEP_CONFIG
  
      with open(sweep_config_json) as fp:
          sweep_config = json.load(fp)
      return sweep_config
  
imports: import os
  import sys
  import argparse
  import json
  import itertools
  import subprocess
  import shutil
  from test_ds_aio_utils import refine_integer_value
  from perf_sweep_utils import READ_OP_DESC, WRITE_OP_DESC, BENCH_LOG_DIR, READ_IO_DIR, WRITE_IO_DIR, READ_LOG_DIR, WRITE_LOG_DIR
  from deepspeed.ops.op_builder import AsyncIOBuilder
label_desc: Use image node_id 3 for calling a global function with example usage: get_sweep_config_dict(sweep_config_json) and returns: sweep_config, DEFAULT_SWEEP_CONFIG