code: def format_bytes(nbytes: int) -> str:
      """Format `nbytes` to a human readable string"""
      n = float(nbytes)
      for unit in ["B", "KiB", "MiB", "GiB", "TiB"]:
          if abs(n) < 1024:
              if n.is_integer():
                  return f"{int(n)}{unit}"
              return f"{n:.2f}{unit}"
          n /= 1024
      return f"{n:.2f} PiB"
  
label_desc: Use image node_id 1 for calling a global function with example usage: format_bytes(nbytes) and returns: n, str, n, unit, int, unit