JSObjectHasInstanceCallbackDart typedef
JSObjectHasInstanceCallbackDart =
int Function(Pointer<NativeType> ctx, Pointer<NativeType> object, Pointer<NativeType> propertyName, Pointer<Pointer<NativeType> > exception)
Implementation
typedef JSObjectHasInstanceCallbackDart = int Function(Pointer ctx,
Pointer constructor, Pointer possibleInstance, Pointer<Pointer> exception);