Json feeder: how to pass a key value(json value) from json file to a function which expects a string argument?

Gatling (Open-Source)
1

Hi,

This is my json file
[
  {
    "sample1":{
      "client_id": "",
      "login_id": "",
      "password": "",
      "r_scopes": [
        "test"
      ],
      "rw_scopes": [
        "test"
      ]
    },
    "sample2":{"code":"qa"}
  }
]

I want to pass the sample2 key value i.e. {"code":"qa"} to a function

def funct(body: String)
{}
I tried like
def funct("""${sample2}""") 1st try
def funct("${sample2}") 2nd try

Another concern is that when i feed this json file and access sample2, the value i get is
{code=qa}
i.e. the double quotes are removed and colon is replaced with = symbol.

Can anyone help me :frowning:
How to pass the exact value to a function as string?