Mongodb Atlas Functions - Projection of aggregation pipeline

Working with Data
, ,
1

My Atlas function performs a search & aggregates data. The function is working fine. I have an issue with datatype removal from the projected data. My integer fields come with datatype and I have exhausted alll options to remove datatype from the result.

My Atlas Function

exports = async function(arg){
let collection = context.services
                  .get('mongodb-atlas')
                  .db('et')
                  .collection('flashes');
let pipeline = [
  {
    $search: {
      index: "flash",
      text: {
        query: arg,
        path: {
          wildcard: "*"
        },
        fuzzy :{
        }
      }
    },
  },
  {
  $project: {
    _id: { $toString: "$_id" },
    studioId: { $toString: "$studioId" },
    name: 1,
    tags: 1,
    length: 1,
    breadth: 1,
  }
}

  ];
  
  return collection.aggregate(pipeline);
};

Sample result

{
    "name": "Snoop Dog Portrait",
    "tags": [
      "portrait",
      "celebrity",
      "snoop dog",
      "shading",
      "face portrait"
    ],
    "length": {
      "$numberInt": "6"
    },
    "breadth": {
      "$numberInt": "7"
    },
    "_id": "643f7674b638e716b1501ecd",
    "studioId": "643f74b9b638e716b1501e97"
  }

The result I want to achieve is a json document with length & breadth fields with numbers. Not the datatupes.

I may have overlooked something. If anybody could help me figure out. I, will be grateful.
Regards