How to use the messaging-api-line.Line.createText function in messaging-api-line

sendText(text: string, options?: LineTypes.MessageOptions) {
    return this.send([Line.createText(text, options)], options);
  }

const handleEvent = event => {
  const { type, replyToken, message } = event;
  const messageType = message.type;
  if (type !== 'message' || messageType !== 'text') {
    return Promise.resolve(null);
  }
  if (verifyEvents.includes(replyToken)) return Promise.resolve(null);
  return client.reply(replyToken, [
    Line.createText('Hello'),
    Line.createImage(imageUrl),
    Line.createText('End'),
  ]);
};

pushText(text: string, options?: LineTypes.MessageOptions) {
    return this.push([Line.createText(text, options)], options);
  }

const handleEvent = event => {
  const { type, replyToken, message } = event;
  const messageType = message.type;
  if (type !== 'message' || messageType !== 'text') {
    return Promise.resolve(null);
  }
  if (verifyEvents.includes(replyToken)) return Promise.resolve(null);
  return client.reply(replyToken, [
    Line.createText('Hello'),
    Line.createImage(imageUrl),
    Line.createText('End'),
  ]);
};

toLineMessage() {
        return Line.createText(this.data)
    }

replyText(text: string, options?: LineTypes.MessageOptions) {
    return this.reply([Line.createText(text, options)], options);
  }