json_schema: {
      "$schema": "http://json-schema.org/draft-04/schema",
      "title": "Station",
      "description": "Describes information about stations",
      "type": "object",
      "properties": {
          "id": {
              "description": "unique identifier for this station",
              "type": "string"
          },
          "city": {
              "description": "viewable city name where the station is located",
              "type": "string"
          },
          "cityid": {
              "description": "unique identifier of the city where this station is located",
              "type": "string"
          },
          "lat": {
              "description": "latitude of station location",
              "type": "number"
          },
          "lon": {
              "description": "longitude of station location",
              "type": "number"
          },
          "tanks": {
              "description": "tanks located at this station",
              "type": "object",
              "properties": {
                  "regular": {
                      "description": "tankid value of the regular fuel tank located at this station",
                      "type": "string"
                  },
                  "premium": {
                      "description": "tankid value of the premium fuel tank located at this station",
                      "type": "string"
                  },
                  "diesel": {
                      "description": "tankid value of the diesel fuel tank located at this station",
                      "type": "string"
                  }
              },
              "required": [
                  "regular",
                  "premium"
              ]
          },
          "pumps": {
              "description": "list of pumps located at this station",
              "type": "array",
              "items": {
                  "description": "pumpId values for pump located at this station",
                  "type": "string"
              }
          }
      },
      "required": [
          "id",
          "city",
          "cityid",
          "lat",
          "lon",
          "tanks",
          "pumps"
      ]
  }