How to Convert Composite Key to Unique ID in Oracle HCM Workflow Agent?

Summary:

Hello All,

My Use case is to update manager either update position using workflow agent, But here i wanna fix Assignment BO node output to fetch Worker Uniq Id and Assignment Uniq Id. but i am getting them as Composite Key/Alternate Key nod as Uniq Id. How could i fix them

Expected response in workflow agent.

This is the output of the business object but inside the workflow agent.

Code Snippet (add any code snippets that support your topic, if applicable):