code: def compress_dir(path, compression="gz"):
      
      for parent, subdirs, files in os.walk(path):
          for f in files:
              compress_file(os.path.join(parent, f), compression=compression)
docs: Recursively compresses all files in a directory. Note that this
      compresses all files singly, i.e., it does not create a tar archive. For
      that, just use Python tarfile class.
  
      Args:
          path (str): Path to parent directory.
          compression (str): A compression mode. Valid options are "gz" or
              "bz2". Defaults to gz.