text: /**
  * (C) Copyright IBM Corporation 2018.
  *
  * 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.
  */
  const { Readable } = require('stream');
  
  class TextToSpeechEngine extends Readable {
    /* eslint-disable class-methods-use-this */
    _read() {}
  
    /**
     * Destroys the Text To Speech Engine if a close from the other side occurs
     */
    // eslint-disable-next-line class-methods-use-this
    destroy() {
      throw new Error('not implemented');
    }
  }
  module.exports = TextToSpeechEngine;
  