{"ast_node_type":"other","tokens":[{"end":80,"kind":"keyword","start":0,"text":"//"}]}
            // For simplicity, we just add a dummy token to the end of the list.
            // We don't want users to provide a return activity if the function doesn't return anything.
            let t = Token::new(TokenKind::Ident(sym::None, false.into()), Span::default());