json_schema: {
      "$schema": "http://json-schema.org/draft-04/schema#",
      "type": "array",
      "minItems": 1,
      "_uniqueItems": true,
      "items": {
          "type": "object",
          "properties": {
              "inherits": {
                  "type": "string"
              },
              "properties": {
                  "type": "object",
                  "properties": {
                      "RenderingEngine_Name": {
                          "type": "string"
                      },
                      "RenderingEngine_Version": {
                          "type": "string"
                      },
                      "RenderingEngine_Description": {
                          "type": "string"
                      },
                      "RenderingEngine_Maker": {
                          "type": "string"
                      },
                      "JavaScript": {
                          "type": "boolean"
                      },
                      "Cookies": {
                          "type": "boolean"
                      },
                      "Frames": {
                          "type": "boolean"
                      },
                      "IFrames": {
                          "type": "boolean"
                      },
                      "Tables": {
                          "type": "boolean"
                      },
                      "JavaApplets": {
                          "type": "boolean"
                      },
                      "VBScript": {
                          "type": "boolean"
                      },
                      "ActiveXControls": {
                          "type": "boolean"
                      },
                      "BackgroundSounds": {
                          "type": "boolean"
                      },
                      "CssVersion": {
                          "type": "integer"
                      }
                  },
                  "required": [
                      "RenderingEngine_Version"
                  ]
              }
          },
          "required": [
              "properties"
          ]
      }
  }