def post_init(self):
        """Run a bunch of post-init hooks."""
        # If there is a short help, then create the longer version from it.
        short_help = self.configuration.get('short_help')
        if (
            short_help
            and 'help' not in self.configuration
            and self.configuration.get('action') != 'lazy_choices'
        ):
            self.configuration['help'] = f'\n{short_help}\n\n'
Run a bunch of post-init hooks.
httpie/cli/options.py