anchor.diff:                              ]
                           ]
                       ],
  -                    "type" :  "Polygon"
  +                    "type": "Polygon"
                   },
  -                "validUntil" :  "2017-08-05T03:00:00Z",
  -                "maxThunderstormProbabilityInPercent" :  10,
  -                "validFrom" :  "2017-08-05T03:00:00Z",
  -                "validPeriod" :  "PT0S"
  +                "validUntil": "2017-08-05T03:00:00Z",
  +                "maxThunderstormProbabilityInPercent": 10,
  +                "validFrom": "2017-08-05T03:00:00Z",
  +                "validPeriod": "PT0S"
               }
           ]
       }
  
positive.code:                             ]
                          ]
                      ],
                      "type" :  "Polygon"
                  },
                  "validUntil" :  "2017-08-05T01:00:00Z",
                  "maxThunderstormProbabilityInPercent" :  16,
                  "validFrom" :  "2017-08-05T01:00:00Z",
                  "validPeriod" :  "PT0S"
              },
              {
                  "locatedWithin" :  {
                      "coordinates" :  [
                          [
                              [
                                  12,
  
negative.code: 'https://point-forecast.weather.mg/aggregate?locatedWithin={%22type%22:%22Polygon%22,%22coordinates%22:[[[12,5],[14,531],[13,52.9],[12,5]]]}&validPeriod=PT0S&fields=maxThunderstormProbabilityInPercent&validFrom=2017-08-05T00:00:00Z&validUntil=2017-08-05T03:00:00Z'
  
  + Parameters
      + locatedWithin: `{"type":"Polygon","coordinates":[[[12,5],[14,531],[13,52.9],[12,5]]]}` (string, required) - JSON polygon geometry object, as defined in GeoJSON
      + validFrom: `2017-08-05T00:00:00Z` (string, required) - ISO8601 timestamp notation, means incl. this timestamp; always provide a time offset, e.g. 'Z' for UTC; optional: a request may provide correct offset (so that server can convert to UTC).
      + validUntil: `2017-08-05T03:00:00Z` (string, required) - ISO8601 timestamp notation, means incl. this timestamp; always provide a time offset, e.g. 'Z' for UTC; optional: a request may provide correct offset (so that server can convert to UTC).
      + validPeriod: `PT0S` (string, required) - comma separated list of periods to be retrieved.
  