(Statements
  (Package
    (Identifier))
  (Function
    (Empty)
    (Identifier)
    (Statements)
    (Statements
      (Assignment
        (Annotation
          (Statements
          { (Identifier)
          ->(Identifier) })
          (Identifier))
        (Statements))
      (Assignment
        (Annotation
          (Statements
          { (Identifier)
          ->(Identifier) }
          { (Identifier)
          ->(Identifier) })
          (Identifier))
        (Statements)))))