[ovirt-devel] Creating a custom NON-VM Network using the Ovirt SDK

If i'm creating a a custom network on OVM using the UI, one of the options in the pop up is a check box labelled "VM network" for determining if I want a VM network. When using the SDK I am building network with a NetworkBuilder, but I cannot see any methods to toggle the VM network option. How do I create a custom Network with not VM role using the SDK? Can it be done with a NetworkBuilder?