code: def test_mul():
      clip = VideoFileClip("media/fire2.mp4")
      new_clip = clip[0:1] * 2.5
      assert new_clip.duration == 2.5
      assert np.array_equal(new_clip[1.1], clip[0.1])
  
imports: import copy
  import os
  import numpy
  from PIL import Image
  import pytest
  from moviepy.audio.AudioClip import AudioClip
  from moviepy.audio.io.AudioFileClip import AudioFileClip
  from moviepy.tools import convert_to_seconds
  from moviepy.video.compositing.CompositeVideoClip import CompositeVideoClip
  from moviepy.video.fx.mask_color import mask_color
  from moviepy.video.fx.multiply_speed import multiply_speed
  from moviepy.video.io.VideoFileClip import VideoFileClip
  from moviepy.video.VideoClip import BitmapClip, ColorClip, ImageClip, VideoClip
label_desc: Use image node_id 37 for calling a global function with example usage: test_mul() without return types