code: def progress_update(
      self, text: str, percent_done: Optional[float] = None
  ) -> None:
      wandb.termlog(f"{next(self._progress)} {text}", newline=False)
  
imports: import itertools
  import platform
  import sys
  from abc import abstractmethod
  from typing import Callable, List, Optional, Tuple, Union
  import click
  import wandb
  from .None import ipython, sparkline
label_desc: Use image node_id 4 for calling the PrinterTerm obj's underlying member method code with example usage: obj.progress_update(text, percent_done) without return types