code: def log_est_complete(est_complete):
      
      if not est_complete:
          print('could not determine an estimated completion time')
          return
      remaining = est_complete - datetime.utcnow()
      message = 'this task should be complete in %s'
      if remaining.total_seconds() < 0:
          message = 'this task exceeds estimate by %s'
      log_delta(message, remaining)
docs: Log the relative time remaining for this est_complete datetime object.