(Statements
  (Function
    (Empty)
    (Empty)
    (Empty)
    (RequiredParameter
      (Empty)
      (Empty)
      (Empty)
      (Identifier)
      (Empty))
    (RequiredParameter
      (Empty)
      (Empty)
      (Empty)
      (Identifier)
      (Empty))
    (StatementBlock
      (Return
        (Identifier)))))