code: def test_export_coco_as_yolov5(self):
      from sahi.utils.coco import Coco, export_coco_as_yolov5
  
      coco_dict_path = "tests/data/coco_utils/combined_coco.json"
      image_dir = "tests/data/coco_utils/"
      output_dir = "tests/data/export_coco_as_yolov5/"
      if os.path.isdir(output_dir):
          shutil.rmtree(output_dir, ignore_errors=True)
      coco = Coco.from_coco_dict_or_path(
          coco_dict_path, image_dir=image_dir
      )
      export_coco_as_yolov5(
          output_dir=output_dir,
          train_coco=coco,
          val_coco=coco,
          numpy_seed=0,
      )
  
imports: import os
  import shutil
  import unittest
  from sahi.utils.coco import merge, update_categories
  from sahi.utils.file import load_json
label_desc: Use image node_id 19 for calling the TestCocoUtils obj's underlying member method code with example usage: obj.test_export_coco_as_yolov5() without return types