docstr: Add additional padding to the formatted numbers.
code: def format_num(n: Union[int, float, str]) -> str:
      """Add additional padding to the formatted numbers."""
      should_be_padded = isinstance(n, (float, str))
      if not isinstance(n, str):
          n = _tqdm.format_num(n)
          assert isinstance(n, str)
      if should_be_padded and "e" not in n:
          if "." not in n and len(n) < _PAD_SIZE:
              try:
                  _ = float(n)
              except ValueError:
                  return n
              n += "."
          n += "0" * (_PAD_SIZE - len(n))
      return n
  
imports: import importlib
  import math
  import os
  import sys
  from typing import Any, Dict, Optional, Union
  from typing_extensions import override
  from lightning.pytorch.utilities.types import STEP_OUTPUT
  import lightning.pytorch
  from lightning.pytorch.callbacks.progress.progress_bar import ProgressBar
  from lightning.pytorch.utilities.rank_zero import rank_zero_debug
label_desc: Use image node_id 2 for calling the Tqdm obj's underlying member method code with example usage: obj.format_num(n) and returns: n, n