Add this item as an argument to the given parser.

        Args:
            parser (argparse.ArgumentParser): The parser to add this item to.
            bootstrap: Flag to indicate whether you only want to mark this
                item as required or not

def add_argument(self, parser, bootstrap=False):
        """Add this item as an argument to the given parser.

        Args:
            parser (argparse.ArgumentParser): The parser to add this item to.
            bootstrap: Flag to indicate whether you only want to mark this
                item as required or not
        """
        if self.cli_expose:
            args = self._get_argparse_names(parser.prefix_chars)
            kwargs = self._get_argparse_kwargs(bootstrap)
            parser.add_argument(*args, **kwargs)