code: def test_get_empty_intersection(self):
      x, y, width, height = 300, 300, 256, 256
      shapely_box = get_shapely_box(x, y, width, height)
  
      coco_segmentation = [[1, 1, 325, 125, 250, 200, 5, 200]]
      shapely_annotation = ShapelyAnnotation.from_coco_segmentation(
          coco_segmentation
      )
  
      intersection_shapely_annotation = (
          shapely_annotation.get_intersection(shapely_box)
      )
  
      self.assertEqual(intersection_shapely_annotation.area, 0)
  
      self.assertEqual(intersection_shapely_annotation.to_xywh(), [])
  
file_path: sahi/tests/test_shapelyutils.py
imports: import unittest
  from sahi.utils.shapely import MultiPolygon, ShapelyAnnotation, get_shapely_box, get_shapely_multipolygon
label_desc: Use image node_id 5 for calling the TestShapelyUtils obj's underlying member method code with example usage: obj.test_get_empty_intersection() without return types