code: def sanity_check(self):
      if has_duplicate_resource(self.queues):
          self.logger.error(
              "Error: at least one resource name is used in multiple queues. "
              "A resource name can only appear in a single queue definition."
          )
          return False
      return True
  
imports: import re
  from collections import defaultdict, deque
  from enum import Enum
  from itertools import chain
  from threading import Event, Thread
  from time import sleep, time
  import attr
  from attr.validators import instance_of
  from .cloud_driver import CloudDriver
  from ..None import Task
  from ..backend_api import Session
  from ..backend_api.session import defs
  from ..backend_api.session.client import APIClient
  from ..debugging import get_logger
label_desc: Use image node_id 3 for calling the AutoScaler obj's underlying member method code with example usage: obj.sanity_check() and returns: True, False