Don't know if this is possible, but it would be really nice to be able to somehow get concrete metadata instances,

````
$media->getMetadata()->getSize();
````

````
$media->getMetadata()->getGpsLongitude();
````

Because I don't like doing things like:

````
if (isset($options['exif_blah_blah_blah'])) {
   $gpsAttrs = $options['exif_blah_blah_blah'];
   if (isset($gpsAttrs['foobar'])) {
      $foo = $gpsAttrs['foobar'];
     $longitude = $foo['long'];
   }
}
````