Asynchronously requests the D-Bus service create new key files for each Source in
list_of_sources.
Each list element must be a scratch Source with no DBusObject.
When the operation is finished, callback will be called. You can then call create_sources.end to
get the result of the operation.
| this | |
| list_of_sources |
a list of Source instances with no DBusObject |
| cancellable |
optional Cancellable object, or |
| callback |
a TaskReadyCallback to call when the request is satisfied |
| user_data |
data to pass to the callback function |