text: import Artist from '../models/artist';
  
  /**
   * Sets a group of Artists as not retired
   * @param {array} _ids - An array of the _id's of of artists to update
   * @return {promise} A promise that resolves after the update
   */
  export default (_ids) => {
    return Artist.updateMany(
      { _id: { $in: _ids } },
      { retired: false },
      { multi: true }
    );
  };
  