Geoip2 postal code extraction broken

[Thinkscape]

geoip2/geoip2:v2.3.2
willdurand/geocoder:v3.1.0

From Provider\GeoIP2:

        return $this->returnResults([
            $this->fixEncoding(array_merge($this->getDefaults(), array(
                'countryCode' => (isset($result->country->iso_code) ? $result->country->iso_code : null),
                'country'     => (isset($result->country->names->{$this->locale}) ? $result->country->names->{$this->locale} : null),
                'locality'    => (isset($result->city->names->{$this->locale}) ? $result->city->names->{$this->locale} : null),
                'latitude'    => (isset($result->location->latitude) ? $result->location->latitude : null),
                'longitude'   => (isset($result->location->longitude) ? $result->location->longitude : null),
                'timezone'    => (isset($result->location->time_zone) ? $result->location->time_zone : null),
                'postalCode'  => (isset($result->location->postal_code) ? $result->location->postal_code : null),
                'adminLevels' => $adminLevels,
            )))
        ]);

However, the $result has the following structure:

It should probably be something like:

[
  'postalCode'  => (isset($result->postal->code) ? $result->postal->code : null),
]

[Thinkscape]

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