states:
  '#type': 'webform_options_custom:us_states'
  '#title': 'U.S. States'
  '#required': true
button:
  '#type': 'webform_options_custom:buttons'
  '#title': 'Buttons'
  '#required': true
  '#options':
    one: One -- This is the number 1.
    two: Two -- This is the number 2.
    three:  Three -- This is the number 3.
