public BitmapRequestBuilder<ModelType, byte[]> toBytes() {
        return transcode(new BitmapBytesTranscoder(), byte[].class);
    }
Transcodes the decoded and transformed {@link Bitmap} to bytes by compressing it as a JPEG to a byte array.
array.

@see #toBytes(Bitmap.CompressFormat, int)

@return This request builder.
core/src/main/java/com/bumptech/glide/BitmapTypeRequest.java