code: def bitrate(input_filepath):
      '''
      Number of bits per sample (0 if not applicable).
  
      Parameters
      ----------
      input_filepath : str
          Path to audio file.
  
      Returns
      -------
      bitrate : int
          number of bits per sample
          returns 0 if not applicable
      '''
      validate_input_file(input_filepath)
      output = soxi(input_filepath, 'b')
      if output == '0':
          logger.warning("Bitrate unavailable for %s", input_filepath)
      return int(outputf bitrate(input_filepath):
      '''
      Number of bits per sample (0 if not applicable).
  
      Parameters
      ----------
      input_filepath : str
          Path to audio file.
  
      Returns
      -------
      bitrate : int
          number of bits per sample
          returns 0 if not applicable
      '''
      validate_input_file(input_filepath)
      output = soxi(input_filepath, 'b')
      if output == '0':
          logger.warning("Bitrate unavailable for %s", input_filepath)
      return int(output)
docs: Number of bits per sample (0 if not applicable).
  
      Parameters
      ----------
      input_filepath : str
          Path to audio file.
  
      Returns
      -------
      bitrate : int
          number of bits per sample
          returns 0 if not applicable