WP REST json response for a WP_Error

response.json

{
  "code": "name",
  "message": "Name is required",
  "data": {
    "status": 400
  },
  "additional_data": [
    {
      "status": 400
    }
  ],
  "additional_errors": [
    {
      "code": "name",
      "message": "A second Name error message",
      "data": {
        "status": 400
      },
      "additional_data": [
        {
          "status": 400
        }
      ]
    },
    {
      "code": "name",
      "message": "A third Name error message",
      "data": {
        "status": 400
      },
      "additional_data": [
        {
          "status": 400
        }
      ]
    },
    {
      "code": "email",
      "message": "Email is required",
      "data": {
        "status": 400
      }
    }
  ]
}