// NOTE: Struct flag is *required* for 'USTRUCT'.
class YourStructName /* Struct+StructFlag+StructFlag+... */ extends BaseStruct {
   properties() {
     property-declarations
   }
}

class YourClassName /* ClassFlag+ClassFlag+... */ extends ParentClass {
   ctor() {
     // initialization
     // component setup
   }
   properties() {
     property-declarations
   }
   YourUFunctionName(arg/*PropertyFlag+...*/) /*FunctionFlag+...*/ {
   }
   YourPureJavascriptFunctionName(arg,...) {
   }
}