first_name:
  '#title': 'First Name'
  '#type': textfield
  '#required': true
last_name:
  '#title': 'Last Name'
  '#type': textfield
  '#required': true
email:
  '#title': Email
  '#type': email
  '#required': true
actions:
  '#type': webform_actions
  '#title': 'Submit button(s)'
  '#submit__label': Subscribe
