json_schema: {
      "$schema": "http://json-schema.org/draft-04/schema#",
      "type": "array",
      "items": {
          "type": "object",
          "properties": {
              "lastChanged": {
                  "type": "integer"
              },
              "isTemporary": {
                  "type": "boolean"
              },
              "title": {
                  "type": "string"
              },
              "documents": {
                  "type": "array",
                  "items": {}
              },
              "lastChangedBy": {
                  "type": "object",
                  "properties": {
                      "email": {
                          "type": "string"
                      },
                      "name": {
                          "type": "string"
                      }
                  },
                  "required": [
                      "email",
                      "name"
                  ]
              },
              "author": {
                  "type": "object",
                  "properties": {
                      "email": {
                          "type": "string"
                      },
                      "name": {
                          "type": "string"
                      }
                  },
                  "required": [
                      "email",
                      "name"
                  ]
              },
              "id": {
                  "type": "string"
              },
              "date": {
                  "type": "integer"
              }
          },
          "required": [
              "lastChanged",
              "isTemporary",
              "title",
              "documents",
              "lastChangedBy",
              "author",
              "id",
              "date"
          ]
      }
  }