code: def generate_fake_example(w: int, h: int, identifier: int):
      """Generate a random COCO example."""
      num_objects = 8
      return {
          "image": np.random.randint(
              0, 256, size=(w, h, 3), dtype=np.uint8
          ),
          "image/filename": f"{identifier:012}.jpg",
          "image/id": identifier,
          "objects": {
              "area": np.arange(num_objects, dtype=np.int64) * 50,
              "bbox": np.stack(
                  [np.array([0.0, 0.0, 1.0, 1.0])] * num_objects
              ),
              "id": np.arange(num_objects),
              "is_crowd": np.full((num_objects,), False, dtype=bool),
              "label": np.random.randint(
                  0, 81, size=(num_objects,), dtype=np.int32
              ),
          },
      }
  
label_desc: Use image node_id 1 for calling a global function with example usage: generate_fake_example(w, h, identifier) and returns: dict