auths objectreturn or this.key = 'value', pass input data to your code viaparams, and maintain state across executions with$checkpoint.async (event, steps) => {}this.subject = `New item in RSS feed: ${event.title}`async params => {}const options = {
  subject: params.subject,
  text: params.text,
}
if (params.html) {
  options.html = params.html
}
if (params.include_collaborators) {
  options.include_collaborators = params.include_collaborators
}
$send.email(options)