(Program
  (ExpressionStatement
    (Function
      (Empty)
      (Empty)
      (Identifier)
      (RequiredParameter
        (Empty)
        (Empty)
        (Assignment
          (Identifier)
          (Empty)))
      (RequiredParameter
        (Empty)
        (Empty)
        (Assignment
          (Identifier)
          (Empty)))
      (
        (ExpressionStatement
          (Function
            (Empty)
            (Empty)
            (Identifier)
            (RequiredParameter
              (Empty)
              (Empty)
              (Assignment
                (Identifier)
                (Empty)))
            (RequiredParameter
              (Empty)
              (Empty)
              (Assignment
                (Identifier)
                (Empty)))
            (
              (ExpressionStatement
                (Call
                  (MemberAccess
                    (Identifier)
                    (Identifier))
                  (Identifier)
                  (Empty)))
              (ExpressionStatement
                (Call
                  (MemberAccess
                    (Identifier)
                    (Identifier))
                  (Identifier)
                  (Empty))))))))))