json_schema: {
      "$schema": "http://json-schema.org/draft-04/schema#",
      "type": "object",
      "properties": {
          "name": {
              "type": "string"
          },
          "permissions": {
              "type": "array",
              "items": {
                  "type": "string"
              }
          },
          "members": {
              "type": "array",
              "items": {
                  "$ref": "#/definitions/Person"
              }
          }
      },
      "definitions": {
          "Person": {
              "type": "object",
              "properties": {
                  "name": {
                      "type": "string"
                  }
              }
          }
      }
  }