code: def print_help_info(self, global_options):
          
          usage = ['',"Type '%s help <subcommand>' for help on a specific subcommand." % self.prog_name,'']
          usage.append('Available subcommands:')
          commands = list(self.get_commands().keys())
          commands.sort()
          for cmd in commands:
              usage.append('  %s' % cmd)
          return '\n'.join(usage)
docs: Returns the script's main help text, as a string.