code: def inst_coll_manager(self) -> InstanceCollectionManager:
      return self._inst_coll_manager
  
imports: import asyncio
  import json
  import logging
  import os
  from typing import Dict
  from gear import Database
  from gear.cloud_config import get_azure_config
  from hailtop import aiotools
  from hailtop.aiocloud import aioazure
  from hailtop.utils import periodically_call
  from ....driver.driver import CloudDriver
  from ....driver.instance_collection import InstanceCollectionManager, JobPrivateInstanceManager, Pool
  from ....inst_coll_config import InstanceCollectionConfigs
  from .billing_manager import AzureBillingManager
  from .regions import RegionMonitor
  from .resource_manager import AzureResourceManager
label_desc: Use image node_id 3 for calling the AzureDriver obj's underlying member method code with example usage: obj.inst_coll_manager() and returns: self