Get Subscription ID from ARBCreateSubscriptionController.getresponse() in python

[sanaani]

I'm successfully able to use the GitHub code to create an ARB.

I see on my sandbox page the Subscription ID (circled in red above). Where is the Subscription ID in the controller.getresponse() object? If that's not an available field, how do I retrieve it?

[NexusSoftware]

if (response.messages.resultCode=="Ok"):

Subscription ID  = response.subscriptionId