code: def track_progress_flat(items, fmt="<{}>"):
      for item in items:
          print(fmt.format(item), flush=True)
          yield item
  
imports: import argparse
  import contextlib
  import logging
  import os
  import os.path
  import shutil
  import sys
  from .None import fsutil, strutil, iterutil, logging
label_desc: Use image node_id 29 for calling a global function with example usage: track_progress_flat(items, fmt) without return types