I thought of F# record expressions immediately https://learn.microsoft.com/en-us/dotnet/fsharp/language-reference/copy-and-update-record-expressions https://le

I thought of F# record expressions immediately https://learn.microsoft.com/en-us/dotnet/fsharp/language-reference/copy-and-update-record-expressions https://learn.microsoft.com/en-us/dotnet/fsharp/language-ref...