in lib/src/utf16.dart [93:100]
Pointer<Utf16> toNativeUtf16({Allocator allocator = malloc}) {
final units = codeUnits;
final Pointer<Uint16> result = allocator<Uint16>(units.length + 1);
final Uint16List nativeString = result.asTypedList(units.length + 1);
nativeString.setRange(0, units.length, units);
nativeString[units.length] = 0;
return result.cast();
}