✅ Using System.Collections.Generic Wide-ranging Type? (T), but limiting to fewer options
Oh, might be. I read in the "terminal?" that "XYZ feature isn't available in .NET 8.0, only available in .NET 9.0", not the exact wording, but you get it.
Wait, wait, just a knowledge check for me, so is the Librarian known by the compiler as a "Person" instead of a Librarian? Because we instantiated a Person, then built upon that foundation... right?