RWMB_Map_Field::normalize PHP Method

    static function normalize($field)
    {
        $field = parent::normalize($field);
        $field = wp_parse_args($field, array('std' => '', 'address_field' => '', 'api_key' => 'AIzaSyC1mUh87SGFyf133tpZQJa-s96p0tgnraQ'));
        return $field;
    }