use Tuandm\Database\Reader;
  
  include_once "vendor/autoload.php";
  
  $reader = new Reader();
  // Or construct with mmdb file
  // $reader = new Reader('/path/to/mmdb_file');
  $record = $reader->city('52.192.103.163');

  echo $record->city->name; // Tokyo

  // We can also create Reader instance for reading country database
  $reader = Reader::forCountry();
  $record = $reader->country('52.192.103.163');