DwMeta? Sorry, not sure what you are referring to. XML Metadata? Or something completely different?

You just lost me. Probably my fault. Could you elaborate? An example?

TIA /Michael

Appeon simply renamed property Object => DwMeta to avoid name class with System.Object.

Docs are still work in progress since we are still in beta phase. However, possible to use F12-Go to Definition to inspect APIs. I first downloaded the updated example:

SnapDevelop > Start Page > Sample Projects > .NET DataStore Example 
(or: directly GitHub project)

I downloaded, unzipped, and open the sample solution. When I double-click my VS 2019 opens but same procedure applies in SnapDevelop.

1. Solution Explorer > Services > Impl > open PersonService.cs
2. Start of function SavePerson (starts line 34)

   public int SavePerson(IDataStore person, IDataStore addresses, 
       IDataStore phones, IDataStore customers)
   {
       // INSERT next 2 lines
       phones.Object
       phones.DwMeta
   

3. Check definitions using F12
   • Select Object + F12 => Object implements IDwMeta
   • Select DwMeta + F12 => DwMeta implements IDwMeta
     
     
   • Optional: Select IDwMeta and F12 to inspect details
     
     
4. CONCLUSION: DwMeta simply renames Object to avoid name class with System.Object.