Get an attribute template from the object.
The attr_type must be for an attribute which returns a template.
This call may block for an indefinite period.
| this |
The object to get an attribute template from. |
| attr_type |
The template attribute type. |
| cancellable |
Optional cancellation object, or null. |
|
the resulting PKCS#11 attribute template, or null if an error occurred |