Asynchronously lookup a certificate by its handle in the database.
See lookup_certificate_for_handle for more information.
| this | |
| handle |
a certificate handle |
| interaction |
used to interact with the user if necessary |
| flags |
Flags which affect the lookup. |
| cancellable |
a Cancellable, or null |
| callback |
callback to call when the operation completes |
| user_data |
the data to pass to the callback function |