code: def simulate_batch():
      """Ensure that the current queue run looks like a batch run to Guild.
  
      Creates a proto dir to mimick the appearance of a batch. This
      ensures that the queue doesn't show up in compare and other
      facilities that ignore batch runs by default.
      """
      this_run = op_util.current_run()
      util.ensure_dir(this_run.guild_path("proto"))
  
imports: import logging
  import os
  import signal
  import time
  from guild import lock
  from guild import op_util
  from guild import util
  from guild import var
label_desc: Use image node_id 31 for calling a global function with example usage: simulate_batch() without return types