def save_config(self):
        """Save the config to the config file."""
        self.config_section['match_fuzzy'] = self.model_completer.match_fuzzy
        self.config_section['enable_vi_bindings'] = self.enable_vi_bindings
        self.config_section['show_completion_columns'] = \
            self.show_completion_columns
        self.config_section['show_help'] = self.show_help
        self.config_section['theme'] = self.theme
        self.config_obj.write()