code: def install_nodejs(self):
      os.system("brew unlink node")
      os.system("brew install node@18")
      os.system("brew link --overwrite node@18")
  
imports: import argparse
  import os
  import platform
  import sys
  from print_env_info import run_and_parse_first_match
  from ts_scripts.utils import check_python_version
label_desc: Use image node_id 3 for calling the Darwin obj's underlying member method code with example usage: obj.install_nodejs() without return types