code: def test_exact_frame_count():
      dataset = foz.load_zoo_dataset("quickstart-video").clone()
      dataset.limit(2).save()
  
      for smp in dataset:
          frame_count = fouv.exact_frame_count(smp.filepath)
          assert frame_count == len(smp.frames)
  
file_path: fiftyone/tests/intensive/video_tests.py
imports: import random
  import unittest
  import fiftyone
  import fiftyone.zoo
  from fiftyone import ViewField
  import fiftyone.utils.video
label_desc: Use image node_id 6 for calling a global function with example usage: test_exact_frame_count() without return types