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