使用Box API创建文件夹时的文件夹ID

I'm using the BoxPHPAPI and I was wondering if there was a way to get the folder ID when creating a folder?

https://github.com/golchha21/BoxPHPAPI

The create_folder function returns the results of the Box folder creation call, which includes the id parameter. https://developers.box.com/docs/#folders-create-a-new-folder

$folder = $box->create_folder('FOLDER NAME', 'PARENT FOLDER ID');
print $folder->id;