Using Orion Credential Set for SNMPv3 when Adding Node through SDK

I see that you can use Orion Credential Sets when configuring a Node to use SNMPv3 although I have never tried it.  I am not seeing that an "Orion.Nodes property" exists for this in SDK.

Is there a way to relate the SNMPv3 configuration to a Credential Set when adding a Node using SDK?

THANKS