<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def pbar(iter, desc='', **kwargs):
 """Wrapper for `tqdm` progress bar. """

    return tqdm(
        iter,
        desc=('<' + str(datetime.now().strftime("%Y-%m-%d %H:%M:%S")) + '> ' +
              desc),
        dynamic_ncols=True,
        **kwargs)