$_propDict
$_propDict : \Microsoft\Graph\Model\array(string
The array of properties available to the model
Drive class
getOwner() : \Microsoft\Graph\Model\IdentitySet
Gets the owner
The owner
getQuota() : \Microsoft\Graph\Model\Quota
Gets the quota
The quota
getRoot() : \Microsoft\Graph\Model\DriveItem
Gets the root
The root