It does not appear that I can send an asynchronous TriggeredSend call to the system with the PHP SDK. Am I missing something? I can add Priority to the props
which gets attached to the TriggeredSendDefinition object, but I can't seem to create a true Options object with the Fuel API. Can this only be done via the older SOAP API?
$myclient = new ET_Client(true, true);
$sendTrigger = new ET_TriggeredSend();
$sendTrigger->props = ['CustomerKey' => 'myTriggeredSend', 'Priority' => 'High'];