Optional helperHelper text.
The property key that this field value will appear in the returned NotificationFormSubmittedEvent.form|form object.
Optional labelInput label.
Field data type.
Optional validationValidation rules used to validate user input.
Length of the input string.
Provide a regex string that will be tested against the input value.
Maximum number of characters.
Minimum number of characters.
The field is required to be filled in by the user.
Optional valueDefault value for field, and where it will be written to
What input widget is used.
StringWidgets {@link StringWidgets}
String field within a form.