code: def _human_readable_bytes(num_bytes: float) -> str:
      for unit in ("B", "KB", "MB", "GB", "TB"):
          if abs(num_bytes) < 1000.0:
              return f"{num_bytes:3.1f} {unit}"
          num_bytes /= 1000.0
      return f"{num_bytes:.1f} PB"
  
label_desc: Use image node_id 2 for calling a global function with example usage: _human_readable_bytes(num_bytes) and returns: num_bytes, str, num_bytes, str, unit