const HelpIntentHandler = {
  canHandle (handlerInput) {
    return handlerInput.requestEnvelope.request.type === 'IntentRequest' &&
      handlerInput.requestEnvelope.request.intent.name === 'AMAZON.HelpIntent'
  },
...

$ npm i -S ask-utils

const HelpIntentHandler = {
  canHandle (handlerInput) {
    return handlerInput.requestEnvelope.request.type === 'IntentRequest' &&
      handlerInput.requestEnvelope.request.intent.name === 'AMAZON.HelpIntent'
  },
...

const { canHandle } = require('ask-utils')
const HelpIntentHandler = {
  canHandle (handlerInput) {
    return canHandle(handlerInput, 'IntentRequest', 'AMAZON.HelpIntent')
  },
...

function randomPhrase(myData) {

  // the argument is an array [] of words or phrases

  var i = 0;

  i = Math.floor(Math.random() * myData.length);

  return(myData[i]);

}
const welcomeGreetings = ['hello','howdy','hi', 'good day'];
const speachText = randomPhrase(welcomeGreetings);

const { getRandomMessage } = require('ask-utils')
const welcomeGreetings = ['hello','howdy','hi', 'good day'];
const speachText = getRandomMessage(welcomeGreetings);

const { canHandle, getSlotValueByName } = require('ask-utils')
const ExampleIntentHandler = {
  canHandle (handlerInput) {
    return canHandle(handlerInput, 'IntentRequest', 'ExampleIntent')
  },
  handle (handlerInput) {
    const yourName = getSlotValueByName(handlerInput, 'nameSlot')
    const speechText = `Hello ${yourName} ! Welcome to our skill !`

const { enqueueProgressiveResponseDirective } = require('ask-utils') 
const GetFirstEventHandler = {
  canHandle (handlerInput) {
    const request = handlerInput.requestEnvelope.request
    return request.type === 'IntentRequest' && request.intent.name === 'GetFirstEventIntent'
  },
  async handle (handlerInput) {
    try {
      await enqueueProgressiveResponseDirective(handlerInput, 'Please wait for a while')
    } catch (err) {
      // if it failed we can continue, just the user will wait longer for first response
      console.log(err)
    }
    // call some api
    const content = await get()
    return responseBuilder
        .speak(content)
        .getResponse()
  }
}