def update_args(self, args):
for arg in vars(args):<EOL><INDENT>if self.get(arg) and getattr(args, arg) is not None:<EOL><INDENT>self._config[self.root_section][arg] = getattr(args, arg)<EOL><DEDENT><DEDENT>
Update config dictionary with parsed args, as resolved by argparse.
        Only root positional arguments that already exist will overridden.

        Args:
            args (namespace): args parsed by argparse