code: def close(self, delete_queue=True):
      self.logger.info("Studioml completion service shutting down")
      request_delete_queue = self.shutdown_del_queue or delete_queue
      model.shutdown_queue(
          self.queue, self.logger, request_delete_queue
      )
  
imports: import os
  import subprocess
  import uuid
  import pickle
  import tempfile
  import re
  import six
  import time
  from studio import experiment_submitter, model, fs_tracker, logs
  from studio.util import rsync_cp, parse_verbosity
  from studio.experiment import create_experiment
label_desc: Use image node_id 4 for calling the CompletionService obj's underlying member method code with example usage: obj.close(delete_queue) without return types