json_schema: {
      "$schema": "http://json-schema.org/draft-04/schema#",
      "title": "Dataset definition",
      "description": "Definition of cDAL dataset",
      "type": "object",
      "properties": {
          "datasetName": {
              "description": "Name of dataset",
              "type": "string"
          },
          "models": {
              "type": "array",
              "minItems": 1,
              "_uniqueItems": true,
              "items": {
                  "type": "object",
                  "properties": {
                      "name": {
                          "type": "string"
                      },
                      "typeName": {
                          "type": "string"
                      },
                      "tableName": {
                          "type": "string"
                      },
                      "fields": {
                          "type": "array",
                          "minItems": 1,
                          "_uniqueItems": true,
                          "items": {
                              "type": "object",
                              "properties": {
                                  "name": {
                                      "type": "string"
                                  },
                                  "type": {
                                      "type": "string"
                                  }
                              },
                              "required": [
                                  "name",
                                  "type"
                              ]
                          }
                      }
                  },
                  "required": [
                      "name",
                      "fields"
                  ]
              }
          }
      },
      "required": [
          "datasetName",
          "models"
      ]
  }