code: def testDeallocateResources(self):
      scheduler = ResourceChangingScheduler(
          resources_allocation_function=DistributeResourcesToTopJob(
              add_bundles=False,
              increase_by={"GPU": 2},
              metric="metric",
              mode="max",
          )
      )
  
      base_pgf = PlacementGroupFactory([{"CPU": 1, "GPU": 2}])
      trial1, trial2, trial3, trial4 = self._prepareTrials(
          scheduler, base_pgf
      )
      trial1.placement_group_factory = PlacementGroupFactory(
          [{"CPU": 1, "GPU": 4}]
      )
      trial4.status = Trial.PENDING
  
      self._allocateAndAssertNewResources(
          trial1,
          scheduler,
          PlacementGroupFactory([{"CPU": 1, "GPU": 2}]),
      )
  
imports: import shutil
  import tempfile
  import unittest
  from ray.tune import PlacementGroupFactory
  from ray.tune.execution.tune_controller import TuneController
  from ray.tune.schedulers.trial_scheduler import TrialScheduler
  from ray.tune.experiment import Trial
  from ray.tune.schedulers.resource_changing_scheduler import ResourceChangingScheduler, DistributeResources, DistributeResourcesToTopJob
  from ray.tune.tests.execution.utils import create_execution_test_objects
  from ray.train.tests.util import mock_storage_context
label_desc: Use image node_id 5 for calling the TestTopJobResourceAllocation obj's underlying member method code with example usage: obj.testDeallocateResources() without return types