Add DocImages node

[vitalianoco]

hi!
how to add a DocImages node?
$docimage = new DocImage();
$docimage->Type = 'CIN';
$docimage->Image = '';
$docimage->ImageFormat = 'PDF';
$sample->DocImages->addDocImage($docimage);
don't work
Ps: sorry for my english

[vitalianoco]

solved:
use DHL\Datatype\GB\DocImage;
$docimage = new DocImage();
$docimage->Type = 'CIN';
$docimage->Image = '';
$docimage->ImageFormat = 'PDF';
$sample->addDocImages($docimage);
thanks!