How to Convert json to xml request body in the postman

My question: I have a XML request body. trying to update a field in the body, converted it to json using xml2Json(pm.request.body.raw) and updated the value. How can I convert this json to xml. My API accepts only xml body.

Details (like screenshots):

How I found the problem:

I’ve already tried: Tried json2xml(request body). but got an error as json2xml reference is not found.