Add support for Dart Null Safety
Add Dart Null Safety support to generated Dart DTOs & servicestack dart client library.
This is now ready to use by downloading the latest ServiceStack v5.11.1 on MyGet (https://docs.servicestack.net/myget).
If you previously had v5.11.1 installed you’ll need to clear your NuGet cache and restoring:
$ nuget locals all -clear
This will generate null safe DTOs that need to be used with v2+ of servicestack dart library: