code: def _get_vpc_id_or_die(ec2, subnet_id: str):
      subnets = _get_subnets_or_die(ec2, (subnet_id,))
      cli_logger.doassert(
          len(subnets) == 1,
          f"Expected 1 subnet with ID `{subnet_id}` but found {len(subnets)}",
      )
      return subnets[0].vpc_id
  
imports: import copy
  import itertools
  import json
  import logging
  import os
  import time
  from collections import Counter
  from functools import lru_cache, partial
  from typing import Any, Dict, List, Optional, Set, Tuple
  import boto3
  import botocore
  from packaging.version import Version
  from ray.autoscaler._private.aws.cloudwatch.cloudwatch_helper import CloudwatchHelper
  from ray.autoscaler._private.aws.utils import LazyDefaultDict, handle_boto_error, resource_cache
  from ray.autoscaler._private.cli_logger import cf, cli_logger
  from ray.autoscaler._private.event_system import CreateClusterEvent, global_event_system
  from ray.autoscaler._private.providers import _PROVIDER_PRETTY_NAMES
  from ray.autoscaler._private.util import check_legacy_fields
  from ray.autoscaler.tags import NODE_TYPE_LEGACY_HEAD, NODE_TYPE_LEGACY_WORKER
label_desc: Use image node_id 18 for calling a global function with example usage: _get_vpc_id_or_die(ec2, subnet_id) and returns: subnets