This is another language whose syntax is similar to Rust's. I wonder why the author chose it, in spite of its Go heritage.
There's already Monkey C used to develop for Garmin devices, and the Monkey/MonkeyX/Monkey2 family by Mark Sibly (of Amiga Blitz Basic fame).
At a guess, the author chose the syntax because it's familiar and easy to parse. Go's syntax is... eccentric where it differs from typical C-style languages.