text: /**
   * Copyright 2020 Google LLC
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  /**
   * Sets required error variables
   *
   * @param {number} status - HTTP Status Code
   * @param {string} phrase - HTTP Reason Phrase
   * @param {string} code - Payload Error Code
   * @param {string} message - Payload Error Message
   * @param {string} url - Payload Info URL
   */
  function setFault(status, phrase, code, message, url) {
    context.setVariable('custom.error.code', code);
    context.setVariable('custom.error.message', message);
    context.setVariable('custom.error.url',
      url ? url : 'https://developers.example.com');
    context.setVariable('custom.error.status', status);
    context.setVariable('custom.error.phrase', phrase);
  }
  
  // custom error handling here
  switch (context.getVariable('fault.name')) {
    case 'my.error':
      setFault(418, 'Im a teapot', '418.99',
          'My Custom Error Message');
      break;
  }
  