json_schema: {
      "$schema": "http://json-schema.org/draft-06/schema#",
      "title": "Metadata AOI",
      "description": "This is a schema for validating the specification.",
      "type": "object",
      "properties": {
          "metadata_type": {
              "type": "string",
              "default": "n/a"
          },
          "name_of_aoi": {
              "type": "string",
              "default": "n/a"
          },
          "planned_map_type": {
              "type": "string",
              "default": "n/a"
          },
          "planned_satellite_data": {
              "type": "string",
              "default": "n/a"
          }
      },
      "required": [
          "metadata_type",
          "name_of_aoi",
          "planned_map_type",
          "planned_satellite_data"
      ],
      "additionalProperties": true
  }