ProgramNode(18...90)(
  [],
  StatementsNode(18...90)(
    [ClassNode(18...90)(
       [],
       (18...23),
       ConstantReadNode(24...52)(),
       nil,
       nil,
       StatementsNode(54...86)(
         [DefNode(54...86)(
            (63...65),
            SelfNode(58...62)(),
            nil,
            StatementsNode(67...81)(
              [LocalVariableWriteNode(67...81)(
                 :così,
                 0,
                 SymbolNode(75...81)((75...76), (76...81), nil, "però"),
                 (67...72),
                 (73...74)
               )]
            ),
            [:così],
            (54...57),
            (62...63),
            nil,
            nil,
            nil,
            (83...86)
          )]
       ),
       (87...90),
       "ExampleUTF8ClassNameVarietà"
     )]
  )
)