How to trigger the multiline string parameter jobs in jenkins through postman?

Using Jenkins Ask a question
,
1

Jenkins setup: This is a multiline parameter.\nIt contains multiple lines.\nHere is another line.
This is a multiline parameter.\nIt contains multiple lines.\nHere is another line.

I have tried above two methods but it is passing as null in jenkins, it accepts the choice parameter and job is getting succesfull

2

I have passed this in body of the request, It has taken two parameters and giving null for the first one.

{
“Multiline”:“parameter.\nIt contains multiple lines.\nHere is another line.”,
“CHOICE_PARAM_1”: “Option 1”,
“CHOICE_PARAM_2”: “Option A”
}