code: def config(self):
      return {
          "name": self.name,
          "worker_type": self.worker_type,
          "worker_cores": self.worker_cores,
          "boot_disk_size_gb": self.boot_disk_size_gb,
          "worker_local_ssd_data_disk": self.worker_local_ssd_data_disk,
          "worker_external_ssd_data_disk_size_gb": self.worker_external_ssd_data_disk_size_gb,
          "standing_worker_cores": self.standing_worker_cores,
          "min_instances": self.min_instances,
          "max_instances": self.max_instances,
          "max_live_instances": self.max_live_instances,
          "preemptible": self.preemptible,
          "max_new_instances_per_autoscaler_loop": self.max_new_instances_per_autoscaler_loop,
          "autoscaler_loop_period_secs": self.autoscaler_loop_period_secs,
          "standing_worker_max_idle_time_secs": self.standing_worker_max_idle_time_secs,
          "worker_max_idle_time_secs": self.worker_max_idle_time_secs,
          "job_queue_scheduling_window_secs": self.job_queue_scheduling_window_secs,
      }
  
imports: import asyncio
  import logging
  import random
  from collections import defaultdict
  from typing import Dict, List, Optional, Tuple
  import prometheus_client
  import sortedcontainers
  from gear import Database
  from hailtop import aiotools
  from hailtop.utils import AsyncWorkerPool, Notice, WaitableSharedPool, periodically_call_with_dynamic_sleep, retry_long_running, run_if_changed, secret_alnum_string, time_msecs
  from ...batch_format_version import BatchFormatVersion
  from ...globals import INSTANCE_VERSION
  from ...inst_coll_config import PoolConfig
  from ...utils import ExceededSharesCounter, regions_bits_rep_to_regions
  from ..instance import Instance
  from ..job import mark_job_errored, schedule_job
  from ..resource_manager import CloudResourceManager
  from .base import InstanceCollection, InstanceCollectionManager
label_desc: Use image node_id 4 for calling the Pool obj's underlying member method code with example usage: obj.config() and returns: dict