text: var data = require(__dirname+'/../data/');
  /**
   * @requires data
   * @function listUsers
   *
   * @description Queries all uesers from the users table.
   * @param {callback} fn
   */
  
  function listUsers(fn){
    data.users.readAll(fn);
  }
  
  module.exports = listUsers;
  
  