json_schema: {
      "$schema": "http://json-schema.org/draft-04/schema#",
      "definitions": {
          "errorParameter": {
              "description": "recorded error value",
              "properties": {
                  "date": {
                      "_format": "date-time",
                      "type": "string"
                  },
                  "value": {
                      "type": "number"
                  }
              },
              "required": [
                  "date",
                  "value"
              ],
              "type": "object"
          }
      },
      "description": "QISKit device backend calibration",
      "id": "http://qiskit.org/device-file/calibration-01/schema#",
      "properties": {
          "lastUpdateData": {
              "_format": "date-time",
              "description": "date of last calibration routine",
              "type": "string"
          },
          "multiQubitGates": {
              "items": {
                  "properties": {
                      "gateError": {
                          "$ref": "#/definitions/errorParameter"
                      },
                      "name": {
                          "type": "string"
                      },
                      "qubits": {
                          "items": {
                              "minimum": 0,
                              "type": "integer"
                          },
                          "minLength": 2,
                          "type": "array"
                      },
                      "type": {
                          "type": "string"
                      }
                  },
                  "required": [
                      "name",
                      "gateError",
                      "qubits",
                      "type"
                  ],
                  "type": "object"
              },
              "minLength": 0,
              "title": "Multi-qubit gate error parameters",
              "type": "array"
          },
          "qubits": {
              "items": {
                  "properties": {
                      "gateError": {
                          "$ref": "#/definitions/errorParameter"
                      },
                      "name": {
                          "type": "string"
                      },
                      "readoutError": {
                          "$ref": "#/definitions/errorParameter"
                      }
                  },
                  "required": [
                      "name",
                      "gateError",
                      "readoutError"
                  ],
                  "type": "object"
              },
              "minItems": 1,
              "title": "Single-qubit gate error parameters",
              "type": "array"
          }
      },
      "required": [
          "lastUpdateDate",
          "multiQubitGates",
          "qubits"
      ],
      "type": "object"
  }