input: Write a function to simulate the behavior of the `download_subtitles` function provided in the Python script which is used to download subtitles for movies and TV shows. The function should take a list of release paths, a list of subtitle engines, and a subtitle language as input. It should print messages indicating the attempt to download subtitles for each release path, and print the success or failure of the download operation.
  
  
  assert download_subtitles(['path/to/movie1', 'path/to/movie2'], ['engine1', 'engine2'], 'en') == None
  assert download_subtitles(['path/to/movie3'], ['engine3'], 'fr') == None
  assert download_subtitles([], ['engine1'], 'es') == None
  
output: def download_subtitles(release_paths, subtitle_engines, subtitle_language):
      for path in release_paths:
          print(f"Attempting to download subtitles for {path} using {subtitle_engines} in {subtitle_language}")
          for engine in subtitle_engines:
              print(f"Using {engine} to download subtitles for {path}")
              # Simulate download success or failure
              success = True  # Assume success for simulation
              if success:
                  print(f"Successfully downloaded subtitles for {path} using {engine}")
              else:
                  print(f"Failed to download subtitles for {path} using {engine}")