dhall-1.19.0: tests/parser/success/listB.dhall

[
  4,
  null,
  [
    4,
    null,
    [
      15,
      1
    ],
    [
      15,
      2
    ],
    [
      15,
      3
    ]
  ],
  [
    4,
    null,
    [
      15,
      1
    ],
    [
      15,
      2
    ],
    [
      15,
      3
    ]
  ],
  [
    4,
    "Integer"
  ]
]