Lookup a password in the secret service.
The attributes should be a set of key and value string pairs.
If no secret is found then null is returned.
This method may block indefinitely and should not be used in user interface threads.
the schema for attributes
the attribute keys and values
optional cancellation object
a new password string which should be freed with funcpassword_free or may be freed with funcGLib.free when done
Lookup a password in the secret service.
The attributes should be a set of key and value string pairs.
If no secret is found then null is returned.
This method may block indefinitely and should not be used in user interface threads.