input: 
  def download_subtitles(releases, engines=[DEFAULTS['subtitle_engine']], lang=DEFAULTS['subtitle_language']):
      """ Downloads subtitles for the given release paths using the specified engines and language.
      If no engines are specified, the default engine will be used. If no language is specified,
      the default language will be used. The function will print the status of each download operation.
  
      >>> download_subtitles(['/path/to/movie.mkv'], ['opensubtitles'], 'en')
      """
  
output:     for release in releases:
          for engine in engines:
              print(f"Downloading subtitles for {release} using {engine} engine...")
              try:
                  # Simulate downloading subtitles
                  if engine == 'opensubtitles':
                      print(f"Subtitles for {release} downloaded successfully in {lang} language.")
                  else:
                      print(f"Subtitles for {release} not found using {engine} engine.")
              except Exception as e:
                  print(f"Error downloading subtitles for {release} using {engine} engine: {e}")