code: def hardware(self, hw):
      self.bm_config["hardware"] = hw
  
imports: import argparse
  import datetime
  import os
  import shutil
  from subprocess import Popen
  import ruamel.yaml
  from utils import gen_md_report, gen_metrics_json, gen_model_config_json
label_desc: Use image node_id 4 for calling the BenchmarkConfig obj's underlying member method code with example usage: obj.hardware(hw) without return types