code: def create_bool(help_string=NO_HELP, default=NO_DEFAULT):
          # type: (str, Union[bool, NO_DEFAULT_TYPE]) -> bool
          
          # noinspection PyTypeChecker
          return ParamFunctions(
              help_string=help_string,
              default=default,
              type_name="bool",
              function_s2t=convert_string_to_bool,
              function_t2s=convert_bool_to_string,
          )
docs: Create a bool parameter
          :param help_string:
          :param default:
          :return: