(Statements
  (Function
    (Identifier)
    (Identifier)
    (Identifier)
    (Statements
      (Identifier)))
  (Function
    (Identifier)
    (Statements
      (Identifier)))
  (Function
    (Identifier)
    (Identifier)
    (Statements
      (Identifier)))
  (Function
    (Identifier)
    (Annotation
      (Assignment
        (Identifier)
        (Integer))
      (Identifier))
    (Identifier)
    (Statements
      (Identifier))))