docs: def create_int_or_none(help_string=NO_HELP, default=NO_DEFAULT):
          # type: (str, Union[int, None, NO_DEFAULT_TYPE]) -> Union[int, None]
          """
          Create an int parameter
          :param help_string:
          :param default:
          :return:
          """
          # noinspection PyTypeChecker
          return ParamFunctions(
              help_string=help_string,
              default=default,
              type_name="Union[int, None]",
              function_s2t=convert_string_to_int_or_none,
              function_t2s=convert_int_or_none_to_string,
          )