code: def _maybe_log_prepare_time(t0):
      prepare_time = time.time() - t0
      if prepare_time > _prepare_threshold():
          log.warning(
              "Guild took %0.2f seconds to prepare runs. To reduce startup time, "
              "try running with '--skip-images' or '--skip-hparams' options "
              "or reduce the number of runs with filters. Try 'guild tensorboard "
              "--help' for filter options.",
              prepare_time,
          )
  
imports: import csv
  import logging
  import os
  import re
  import sys
  import time
  from guild import batch_util
  from guild import cli
  from guild import op_util
  from guild import run_util
  from guild import tfevent
  from guild import util
  from .None import runs_impl
label_desc: Use image node_id 6 for calling a global function with example usage: _maybe_log_prepare_time(t0) without return types