[
  {
    "fn": "core::Tensor::rot90",
    "in": {
      "data": [
        0,
        1,
        2,
        3,
        4,
        5,
        6,
        7,
        8,
        9,
        10,
        11
      ],
      "shape": [
        3,
        4
      ],
      "k": 1,
      "axes": [
        0,
        1
      ]
    },
    "out": {
      "shape": [
        4,
        3
      ],
      "data": [
        3,
        7,
        11,
        2,
        6,
        10,
        1,
        5,
        9,
        0,
        4,
        8
      ]
    },
    "note": "one quarter turn in the (0, 1) plane, the numpy law"
  },
  {
    "fn": "core::Color::from_hex",
    "in": {
      "hex": "#ff3d40"
    },
    "out": {
      "rgba": [
        255,
        61,
        64,
        255
      ],
      "hex": "#ff3d40"
    },
    "note": "the house red parsed, then printed back by to_hex"
  },
  {
    "fn": "core::png",
    "in": {
      "colors": [
        [
          255,
          0,
          0,
          255
        ],
        [
          0,
          255,
          0,
          255
        ],
        [
          0,
          0,
          255,
          255
        ],
        [
          255,
          255,
          255,
          255
        ]
      ],
      "width": 2,
      "height": 2,
      "scale": 3
    },
    "out": "4eefe6c1267c79b22624cc282926bb3cd13378d91a2d8f737a456d90e63a9f46",
    "note": "sha256 of the png bytes, which pins the encoder and the scale"
  },
  {
    "fn": "core::Colorizer::color",
    "in": {
      "background": "#000000",
      "ramp": [
        "#ff3d40",
        "#3d40ff"
      ],
      "shades": 4,
      "values": [
        0,
        1,
        2,
        3
      ],
      "max": 9
    },
    "out": [
      "#000000",
      "#ff3d40",
      "#ff3d40",
      "#ff3d40"
    ],
    "note": "gradient_bins first; four shades against a max of 9 bin every live value at the ramp head"
  }
]