code: def set_identity_on_overwritten_entries(self, identity) -> None:
      if isinstance(self.array, _ArrayPlaceholder):
          return
  
      with self.on_ready() as stream:
          for _, idx in self.updates:
              self.array[idx] = identity
          stream.record(self.ready)
  
imports: import contextlib
  from itertools import chain
  from typing import Any, Iterator, Optional, Union
  import numpy
  from cupy._core.core import ndarray
  import cupy._creation.basic
  import cupy._manipulation.dims
  from cupy.cuda.device import Device
  from cupy.cuda.stream import Event
  from cupy.cuda.stream import Stream
  from cupy.cuda.stream import get_current_stream
  from cupyx.distributed.array import _modes
  from cupyx.distributed.array import _index_arith
  from cupyx.distributed.array import _data_transfer
  from cupyx.distributed.array._data_transfer import _Communicator
label_desc: Use image node_id 9 for calling the _Chunk obj's underlying member method code with example usage: obj.set_identity_on_overwritten_entries(identity) without return types