code: def test_ffmpeg_parse_infos_video_nframes():
      d = ffmpeg_parse_infos("media/big_buck_bunny_0_30.webm")
      assert d["video_n_frames"] == 720
  
      d = ffmpeg_parse_infos("media/bitmap.mp4")
      assert d["video_n_frames"] == 5
  
imports: import os
  import subprocess
  import time
  import numpy
  import pytest
  from moviepy.audio.AudioClip import AudioClip
  from moviepy.config import FFMPEG_BINARY
  from moviepy.video.compositing.CompositeVideoClip import clips_array
  from moviepy.video.io.ffmpeg_reader import FFMPEG_VideoReader, FFmpegInfosParser, ffmpeg_parse_infos
  from moviepy.video.io.VideoFileClip import VideoFileClip
  from moviepy.video.VideoClip import BitmapClip, ColorClip
label_desc: Use image node_id 2 for calling a global function with example usage: test_ffmpeg_parse_infos_video_nframes() without return types