decode method
Implementation
@override
Future<Uint8List?> decode(String blurHash, int width, int height,
{double punch = 1.0, bool useCache = true}) async {
BlurHash brhash = BlurHash.decode(blurHash, punch: punch);
img.Image image = brhash.toImage(width, height);
return Uint8List.fromList(img.encodeJpg(image));
}