This seems like C# `record struct` https://learn.microsoft.com/en-us/dotnet/csharp/language-reference/proposals/csharp-10.0/record-structs https://learn.micros

This seems like C# `record struct` https://learn.microsoft.com/en-us/dotnet/csharp/language-reference/proposals/csharp-10.0/record-structs https://learn.microsoft.com/en-us/dotnet/csharp/language-ref...