[
  {
    "cirq_type": "MixedUnitaryChannel",
    "_mixture": [
      [
        0.5,
        [
          [
            1,
            0
          ],
          [
            0,
            1
          ]
        ]
      ],
      [
        0.5,
        [
          [
            0,
            1
          ],
          [
            1,
            0
          ]
        ]
      ]
    ],
    "_key": {
      "cirq_type": "MeasurementKey",
      "name": "flip",
      "path": []
    }
  },
  {
    "cirq_type": "MixedUnitaryChannel",
    "_mixture": [
      [
        0.25,
        [
          [
            {
              "cirq_type": "complex",
              "real": 1.0,
              "imag": 0.0
            },
            {
              "cirq_type": "complex",
              "real": 0.0,
              "imag": 0.0
            }
          ],
          [
            {
              "cirq_type": "complex",
              "real": 0.0,
              "imag": 0.0
            },
            {
              "cirq_type": "complex",
              "real": 1.0,
              "imag": 0.0
            }
          ]
        ]
      ],
      [
        0.25,
        [
          [
            {
              "cirq_type": "complex",
              "real": 0.0,
              "imag": 0.0
            },
            {
              "cirq_type": "complex",
              "real": 1.0,
              "imag": 0.0
            }
          ],
          [
            {
              "cirq_type": "complex",
              "real": 1.0,
              "imag": 0.0
            },
            {
              "cirq_type": "complex",
              "real": 0.0,
              "imag": 0.0
            }
          ]
        ]
      ],
      [
        0.25,
        [
          [
            {
              "cirq_type": "complex",
              "real": 0.0,
              "imag": 0.0
            },
            {
              "cirq_type": "complex",
              "real": -0.0,
              "imag": -1.0
            }
          ],
          [
            {
              "cirq_type": "complex",
              "real": 0.0,
              "imag": 1.0
            },
            {
              "cirq_type": "complex",
              "real": 0.0,
              "imag": 0.0
            }
          ]
        ]
      ],
      [
        0.25,
        [
          [
            {
              "cirq_type": "complex",
              "real": 1.0,
              "imag": 0.0
            },
            {
              "cirq_type": "complex",
              "real": 0.0,
              "imag": 0.0
            }
          ],
          [
            {
              "cirq_type": "complex",
              "real": 0.0,
              "imag": 0.0
            },
            {
              "cirq_type": "complex",
              "real": -1.0,
              "imag": 0.0
            }
          ]
        ]
      ]
    ],
    "_key": null
  }
]