This code retrive correctly the 32x32 thumbnail of the file:
BoxClient boxClient = getBoxClient();
BoxThumbnail thumb = boxClient.getFilesManager().getThumbnail(assetId, "png", null);
But what if I want to get the 128x128 or 256x256 thumb? I cannot found the param or a method to retrive this thumb.
Is there any magic tricks that I can do in order to get what I want?