code: function stats(coll, options, callback) {
    // Build command object
    const commandObject = {
      collStats: coll.s.name
    };
  
    // Check if we have the scale value
    if (options['scale'] != null) commandObject['scale'] = options['scale'];
  
    options = Object.assign({}, options);
    // Ensure we have the right read preference inheritance
    options.readPreference = resolveReadPreference(options, { db: coll.s.db, collection: coll });
  
    // Execute the command
    executeCommand(coll.s.db, commandObject, options, callback);
  }
docs: Get all the collection statistics.
  
  @method
  @param {Collection} a Collection instance.
  @param {object} [options] Optional settings. See Collection.prototype.stats for a list of options.
  @param {Collection~resultCallback} [callback] The collection result callback