Pass variable from XAAS Blueprint to a Composite Blueprint simialr to property binding

Hello All,

Need some advise/suggestion with the below:

We have a XAAS blueprint which creates a network port group in vcenter and creates the associated network profile and reservation as well. We want to provision a new machine after the network is provisioned by the XAAS blueprint. The goal is to achieve a single click deployment so we want to pass the network value that got created using the XAAS blueprint to the Composite Blueprint during VM deployment something similar to what we do using property binding in composite blueprints. Is there a way to achieve this? Please advise.