FieldConstraintDefinition

type FieldConstraintDefinition: 
  | RequiredFieldConstraintDefinition
  | LockedFieldConstraintDefinition
  | MinValueFieldConstraintDefinition
  | MaxValueFieldConstraintDefinition
  | SingleLineFieldConstraintDefinition
  | NoWhitespaceFieldConstraintDefinition
  | UniqueEditFieldConstraintDefinition
  | MaxLengthConstraintDefinition;