Load/Save Data Without Strong Types

I'm currently working with the Dart library, which suits how I work with the data. It doesn't use strong typing. It works like this:

<img width="355" alt="image" src="

However, the Clibrary seems to enforce strong typing. Is there a way to use the library without strong types?


<img width="309" alt="image" src="

BTW: This must be using reflection, so I'm guessing this will be a problem for AOT soon.