[
  {
    "cirq_type": "KrausChannel",
    "_kraus_ops": [
      [
        [
          0.5,
          0.5
        ],
        [
          0.5,
          0.5
        ]
      ],
      [
        [
          0.5,
          -0.5
        ],
        [
          -0.5,
          0.5
        ]
      ]
    ],
    "_key": {
      "cirq_type": "MeasurementKey",
      "name": "x_meas",
      "path": []
    }
  },
  {
    "cirq_type": "KrausChannel",
    "_kraus_ops": [
      [
        [
          1,
          0
        ],
        [
          0,
          0
        ]
      ],
      [
        [
          0,
          0
        ],
        [
          0,
          1
        ]
      ]
    ],
    "_key": null
  }
]