code: @ExportInstanceMethod
  	public static void setShape(PointSymbolizerShapeAndSize instance, String shape) {
  		if ("circle".equals(shape)) {
  			instance.setShape(PointSymbolizerShapeAndSize.Shape.CIRCLE);
  		} else if ("square".equals(shape)) {
  			instance.setShape(PointSymbolizerShapeAndSize.Shape.SQUARE);
  		} else {
  			//default value
  			instance.setShape(PointSymbolizerShapeAndSize.Shape.SQUARE);
  		}
  	}
docs: Set the shape type of the point symbolizer. Can be a square (default) or circle.
  
  @param shape The shape type as a string.