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

function { "Hiya" }

---

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

==================
Function Call
==================

foobar("Hiya")

---

(root
  (item
    (statement
      (expression
        (function_call
          (identifier)
          (expression
            (value
              (string))))))))

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

function <message number> {
  output message
  output number
}

---

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

==================
Complex Function Call
==================

foobar (
    "hi"
    42
    {
      x = 1
      y = 2
    }
)

---

(root
  (item
    (statement
      (expression
        (function_call
          (identifier)
          (expression
            (value
              (string)))
          (expression
            (value
              (integer)))
          (expression
            (value
              (map
                (identifier)
                (value
                  (integer))
                (identifier)
                (value
                  (integer))))))))))