Class/struct fields are accessible using .tupleof. I was using __traits(getAttributes) in my serialization library to get UDA's for these fields, including private ones.
Which is a weird implementation, b/c there is no direct alignment between allMembers and .tupleof.
Why not just use `__traits(getAttributes, var.tupleof[0])`? Just serializing private state of types seems flawed too.
