Synchronously invokes the <link linkend="gdbus-method-org-freedesktop-ModemManager1-Modem-Messaging.
Create">Create</link> D-Bus method on this. The calling thread is blocked until a
reply is received.
See call_create for the asynchronous version of this method.
| this | |
| arg_properties |
Argument to pass with the method invocation. |
| out_path |
Return location for return parameter or null to ignore. |
| cancellable |
A Cancellable or null. |
|
true if the call succeeded, false if throws is set. |