{
  "num_qubits": 3,
  "elements": [
    { "type": "gate", "gate": "X", "targets": [2] },
    { "type": "gate", "gate": "H", "targets": [0] },
    { "type": "gate", "gate": "SWAP", "targets": [1, 2], "controls": [0] },
    { "type": "gate", "gate": "H", "targets": [0] }
  ]
}