How to update attibute of process Content server Rest Api

In my blog I have deconstructed a step-by-step workflow, My debugging was playing with smartui and Fiddler observing the payload

https://appukili.wordpress.com/2022/04/17/take-some-rest/

The link called

WF REST API EXPERIMENTS.docx explains this

1. A WF Object called 2047628 is in my system I initiated it is akin to you clicking on the link.
2. When you POST you should get in return a success draft_process in my screencap it is 2124973.
3. This is the temporary map with which you can set attributes attachments etc which are part of the WF Definition. Note the map is still in a temporary state and has not been initiated.
4. In my workflow I had one attribute, in my example, it is called WorkflowForm_3 which is called with a 3 because I deleted 1 & 2 when creating my map.

As I said if this cannot be understood ask OT to create a simple sample explaining everything once more.