Carbon_Fields\Container\Container::activate_field PHP Method

    public static function activate_field($field)
    {
        self::$active_fields[] = $field;
        if (method_exists($field, 'get_fields')) {
            $fields = $field->get_fields();
            foreach ($fields as $inner_field) {
                self::activate_field($inner_field);
            }
        }
        $field->boot();
        do_action('crb_field_activated', $field);
    }