{
  "leafIdx": 1,
  "treeSize": 1,
  "root": "bjQLnP+zepicpUTmu3gKLHiQHT+zNzh2hRGjBhevoB0=",
  "leafHash": "bjQLnP+zepicpUTmu3gKLHiQHT+zNzh2hRGjBhevoB0=",
  "proof": null,
  "desc": "leafIdx plus @1",
  "wantErr": true
}