code: def install_node_packages(self):
      os.system(
          f"{self.sudo_cmd}npm install -g newman@5.3.2 newman-reporter-htmlextra markdown-link-check"
      )
  
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 6 for calling the Common obj's underlying member method code with example usage: obj.install_node_packages() without return types