Provides methods for categorizing content with labels.
| Default | Default ContentNamespace object. | 
| IsValid | Indicates whether the ContentNamespace still exists. | 
| Delete | Destroys the specified ContentNamespace object. | 
| GetName | Retrieves the name of the ContentNamespace. | 
| GetAll | Retrieves all existing ContentNamespace objects. | 
| GetOrCreateNamespace | Retrieves or creates the ContentNamespace if it doesn't exist. |