ProgramNode(0...20)(
  [],
  StatementsNode(0...20)(
    [InterpolatedStringNode(0...20)(
       (0...2),
       [StringNode(2...5)(nil, (2...5), nil, " { "),
        EmbeddedStatementsNode(5...16)(
          (5...7),
          StatementsNode(8...14)(
            [InterpolatedStringNode(8...14)(
               (8...9),
               [EmbeddedStatementsNode(9...13)(
                  (9...11),
                  StatementsNode(11...12)([IntegerNode(11...12)()]),
                  (12...13)
                )],
               (13...14)
             )]
          ),
          (15...16)
        ),
        StringNode(16...19)(nil, (16...19), nil, " } ")],
       (19...20)
     )]
  )
)
