my $image_data = 'R0lGODlhBgAGAJEAANnZ2QAAAP///////yH5BAEAAAAALAAAAAAGAAYAAAINjA0HAEdwLCwMKIQfBQA7';
my $image = $mw->Photo(-data => $image_data, -format => 'gif');
$image->write('test.gif', -format => 'gif');