node_modules/bson/lib/long.js

'use strict';
const Long = require('long');

/**
 * @ignore
 */
Long.prototype.toExtendedJSON = function(options) {
  if (options && options.relaxed) return this.toNumber();
  return { $numberLong: this.toString() };
};

/**
 * @ignore
 */
Long.fromExtendedJSON = function(doc, options) {
  const result = Long.fromString(doc.$numberLong);
  return options && options.relaxed ? result.toNumber() : result;
};

Object.defineProperty(Long.prototype, '_bsontype', { value: 'Long' });
module.exports = Long;