I am trying to insert a field to my collection in mongodb using node but when i given the updatemany query in node its showing error in terminal as events.js:291 throw er; // Unhandled 'error' event TypeError: callback.apply is not a function

my code is as follows:

CustomRoutes.route('/addLeave').post(function (req, res) {
const availableLeave = require('../../nodex/models/available-leave');
  var token = getToken(req.headers);
  if (token) {
    availableLeave.updateMany({}, { $set: { "leave": "hii" } }, false, true, function (err, result) {
      if (err) {
        console.log(err);
      }
      else {
        console.log('Added!');
        res.json("added successfully!");
      }
    });
  } else {
    return res.status(403).send({ success: false, msg: 'Unauthorized.' });
  }});```


can anyone help how to solve this issue?