function getHelpTextResponse_() {
  const help = `*${APPNAME}* lets you quickly create meetings from Google Chat. Here\'s a list of all its commands:
  \`/schedule_Meeting\`  Opens a dialog with editable, preset parameters to create a meeting event
  \`/help\`  Displays this help message
  
  Learn more about creating Google Chat apps at https://developers.google.com/chat.`

  return { 'text': help }
}
Responds with help text about this Chat app.
@return {string} The help text as seen below