code: def remove_tileables(self, tileable_keys):
      self._remove_tileables.extend(tileable_keys)
  
file_path: mars/mars/services/lifecycle/supervisor/tests/test_tracker.py
imports: import numpy
  import pytest
  from .....None import oscar
  from .....None import tensor
  from .....core import tile
  from ....cluster import MockClusterAPI
  from ....meta import MockMetaAPI
  from ....session import MockSessionAPI
  from ....storage import MockStorageAPI, DataNotExist
  from ....task.supervisor.manager import TaskManagerActor
  from ...None import TileableNotTracked
  from ...supervisor.tracker import LifecycleTrackerActor
label_desc: Use image node_id 2 for calling the FakeTaskManager obj's underlying member method code with example usage: obj.remove_tileables(tileable_keys) without return types