Dim s As [String] = [String].Emtpy

Is that a valid declaration in vb.net?

I see it in some example code in the msdn but I have no clue what the brackets are for. Can anyone enlighten me?

Also when you actually type the the statement, after you type "As [String]", the IDE removes the Brackes, so only way to do add this kind of declaration is to paste the whole thing and then it will stay.. Can anyone clue me in?