$httpClient = new \Http\Discovery\Psr18Client();
$provider = new \Geocoder\Provider\GoogleMaps\GoogleMaps($httpClient);
$psr6Cache = new ArrayCachePool(); // Requires `cache/array-adapter` package
$cachedProvider = new \Geocoder\Provider\Cache\ProviderCache(
    $provider, // Provider to cache
    $psr6Cache, // PSR-6 compatible cache
    600 // Cache expiry, in seconds
);
$geocoder = new \Geocoder\StatefulGeocoder($cachedProvider, 'en');
// Will come from Google Maps API
$result1 = $geocoder->geocodeQuery(GeocodeQuery::create('Buckingham Palace, London'));
// Will come from the cache
$result2 = $geocoder->geocodeQuery(GeocodeQuery::create('Buckingham Palace, London'));