Update the object cache with given attributes.
If an attribute already exists in the cache, it will be updated, and if it doesn't it will be added.
This may block, use the asynchronous version when this is not desirable
| this |
the object with the cache |
| attr_types |
the types of attributes to update |
| cancellable |
optional cancellation object |
| n_attr_types |
the number of attribute types |
|
whether the cache update was successful |