code: def main():
      
      mkdir_p('/tmp/test/test')
      source('/root/.bash_profile')
      yum_install(['httpd', 'git'])
      yum_install(['httpd', 'git'], dest_dir='/tmp/test/test', downloadonly=True)
      sed('/Users/yennaco/Downloads/homer_testing/network', '^HOSTNAME.*', 'HOSTNAME=foo.joe')
      test_script = '/Users/yennaco/Downloads/homer/script.sh'
      results = run_command([test_script], timeout_sec=1000)
      print('Script {s} produced exit code [{c}] and output:\n{o}'.format(
          s=test_script, c=results['code'], o=results['output']))
docs: Sample usage for this python module
  
      This main method simply illustrates sample usage for this python
      module.
  
      :return: None