advanced topics
method discovery
[Inject] --> [OPCUA Browse Node] --> [Debug] 
// Discover available methods on an object
// This would typically be done in a separate flow
msg.payload = {
    objectId: "ns=2;s=ProcessController",
    browseDescription: {
        browseDirection: "Forward",
        referenceTypeId: "HasComponent"
    }
};
// Send to Browse node to discover methods