svoid chessOCR_uploadPieceImage(S square, S piece, BufferedImage img) {
  temp tempInfoBox_noHide("Uploading...");
  S imageURL = uploadToImageServer("Chess square: " + piece, img);
  agiBlue_postInSlice(agiBlue_chessPieceImagesSlice(), imageURL, "is", piece);
  agiBlue_postInSlice(agiBlue_chessPieceImagesSlice(), imageURL, "was on square", square);
  infoBox("Uploaded!");
}