code: def setup_parser():
      '''Set up the command-line options.'''
      parser = argparse.ArgumentParser(description='Add random pages to existing site.')
      parser.add_argument('-d','--directory', action='store', default= os.getcwd(),
                                   help='Site directory (must be a valid s2 structure).')
      parser.add_argument('-n','--number', action='store', type=int, default = 20,
                                   help='Number of pages to generate.')
  
      return parsef setup_parser():
      '''Set up the command-line options.'''
      parser = argparse.ArgumentParser(description='Add random pages to existing site.')
      parser.add_argument('-d','--directory', action='store', default= os.getcwd(),
                                   help='Site directory (must be a valid s2 structure).')
      parser.add_argument('-n','--number', action='store', type=int, default = 20,
                                   help='Number of pages to generate.')
  
      return parser
docs: Set up the command-line options.