==================
Simple Function
==================

function { output "Hiya" }

---


(root
  (item
    (statement
      (open_statement
        (expression
          (value
            (function
              (statement
                (open_statement
                  (expression
                    (tool))))
              (statement
                (open_statement
                  (expression
                    (value
                      (string))))))))))))

==================
Complex Function
==================

function <message, number> {
  output message
  output number
}

---

(root
  (item
    (statement
      (open_statement
        (expression
          (value
            (function
              (identifier)
              (identifier)
              (statement
                (open_statement
                  (expression
                    (tool))))
              (statement
                (open_statement
                  (expression
                    (identifier))))
              (statement
                (open_statement
                  (expression
                    (tool))))
              (statement
                (open_statement
                  (expression
                    (identifier)))))))))))