text: import argparse
  from argparse import RawDescriptionHelpFormatter
  import logging
  import signal
  
  from seleniumwire.proxy import client, util
  
  logging.basicConfig(level=logging.DEBUG, format='%(message)s')
  
  
  def standalone_proxy(port=0):
      c = client.AdminClient()
  
      # Configure shutdown handlers
      signal.signal(signal.SIGTERM, lambda *_: c.destroy_proxy())
      signal.signal(signal.SIGINT, lambda *_: c.destroy_proxy())
  
      c.create_proxy(port=int(port), options={
          'standalone': True,
          'verify_ssl': False,
      })
  
  
  if __name__ == '__main__':
      commands = {
          'extractcert': util.extract_cert,
          'standaloneproxy': standalone_proxy
      }
      parser = argparse.ArgumentParser(description='\n\nsupported commands: \n  %s'
                                                   % '\n  '.join(sorted(commands)),
                                       formatter_class=RawDescriptionHelpFormatter,
                                       usage='python -m seleniumwire <command>')
      parser.add_argument('command', help='The command name')
      parser.add_argument('args', nargs='*', help='Optional list of space separated positional and keyword arguments, '
                                                  'e.g. arg1 arg2 kwarg1=12345', default=None)
  
      args = parser.parse_args()
      pargs = [arg for arg in args.args if '=' not in arg and arg is not args.command]
      kwargs = dict([tuple(arg.split('=')) for arg in args.args if '=' in arg])
  
      try:
          commands[args.command](*pargs, **kwargs)
      except KeyError:
          print("Unsupported command '{}' (use --help for list of commands)".format(args.command))
      except TypeError as e:
          if 'unexpected' in str(e):
              print('Unrecognised arguments: {} {}'.format(' '.join(pargs), ' '.join('{}={}'.format(k, v)
                                                                                     for k, v in kwargs.items())))
          elif 'missing' in str(e):
              print('Missing arguments')
  