code: public static Point3i convert(Tuple3D<?> tuple) {
  		if (tuple instanceof Point3i) {
  			return (Point3i) tuple;
  		}
  		return new Point3i(tuple.getX(), tuple.getY(), tuple.getZ());
  	}
docs: Convert the given tuple to a real Point2i.
  
  <p>If the given tuple is already a Point2i, it is replied.
  
  @param tuple the tuple.
  @return the Point2i.
  @since 14.0