>>> ts.IndexTransform(
...     json={
...         "input_inclusive_min": ["-inf", 7, ["-inf"], [8]],
...         "input_exclusive_max": ["+inf", 11, ["+inf"], [17]],
...         "input_labels": ["x", "y", "z", ""],
...         "output": [
...             {
...                 "offset": 3
...             },
...             {
...                 "stride": 2,
...                 "input_dimension": 2
...             },
...             {
...                 "offset": 7,
...                 "index_array": [[[[1]], [[2]], [[3]], [[4]]]],
...                 "index_array_bounds": [1, 4]
...             },
...         ],
...     })
Rank 4 -> 3 index space transform:
  Input domain:
    0: (-inf, +inf) "x"
    1: [7, 11) "y"
    2: (-inf*, +inf*) "z"
    3: [8*, 17*)
  Output index maps:
    out[0] = 3
    out[1] = 0 + 2 * in[2]
    out[2] = 7 + 1 * bounded([1, 5), array(in)), where array =
      {{{{1}}, {{2}}, {{3}}, {{4}}}}