Godot.Resource missing Instantiate() method

Done, whoops my bad.
I thought the way Godot handled C# and GD script was converting it all before compilation anyway? I saw a ton of documentation and forum discussion (documentation, forum, reddit)about how both are technically interpreted since Godot runs on C++ and everything you write is scripted anyway. There are a lot of things C# is faster for, but there are more that GD scripts are.
EDIT: I specifically mean Godot API calls, core integration is faster in c# but any Godot function is going to be slightly slower in C#, and even then the core speed increase is marginal and not noticeable unless you’re working with frankly absurd amounts of data, like scientific research program amounts of data, significantly more than any game frankly should be handling in this current day and age.