builder property
        
        Widget Function(BuildContext context, FTextFieldStyle style, Set<WidgetState>  states, Widget field)
        builder
        
      
final
      The builder used to decorate the text-field. It should always use the given child.
Defaults to returning the given child.
Implementation
final Widget Function(BuildContext context, FTextFieldStyle style, Set<WidgetState> states, Widget field) builder;