I want to take a string in squeak and convert to utf-16

foo := 'ackbar' convertToWithConverter: 
	(TextConverter newForEncoding: 'utf-16').

So how do I convert a ByteArray back to say a String, or a WideString?

---

foo := aByteArray asString convertFromWithConverter: 
	(TextConverter newForEncoding: 'utf-16').