code: def _populate_ndarray():
      ndarray = chainerx.ndarray
  
      # __getitem__ with advanced indexing
      old_getitem = ndarray.__getitem__
  
      def __getitem__(arr, key):
          if not isinstance(key, chainerx.ndarray):
              return old_getitem(arr, key)
  
          is_backprop_required = arr.is_backprop_required()
  
          xp, dev, arr = _from_chx(arr, check_backprop=False)
          # The elements used for indexing the array might be
          # also ChainerX arrays. _from_chx ignores
          # other types and return them as-is
          if isinstance(key, tuple):
              key = tuple(
                  [_from_chx(k, check_backprop=False)[2] for k in key]
              )
          else:
              _, _, key = _from_chx(key, check_backprop=False)
  
          with dev:
              ret = arr[key]
  
          # Doing this check after the fallback __getitem__ because the error
          # which caused the fallback might not be due to advanced indexing.
          # In such case the fallback __getitem__ should also raise the error.
  
          if is_backprop_required:
              raise RuntimeError(
                  "ChainerX getitem fallback for advanced indexing is not "
                  "supported for arrays that are connected to a graph."
              )
  
          return _to_chx(ret)
  
      # __setitem__ with advanced indexing
      def __setitem__(self, key, value):
          if self.is_backprop_required():
              raise RuntimeError(
                  "ChainerX setitem fallback for advanced indexing is not "
                  "supported for arrays that are connected to a graph."
              )
  
          xp, dev, self = _from_chx(self)
          if isinstance(key, tuple):
              key = tuple([_from_chx(k)[2] for k in key])
          else:
              _, _, key = _from_chx(key)
          _, _, value = _from_chx(value)
  
          with dev:
              self[key] = value
  
      ndarray.__setitem__ = __setitem__
      ndarray.__getitem__ = __getitem__
  
      def tolist(arr):
          _, dev, arr = _from_chx(arr)
          with dev:
              ret = arr.tolist()
          return ret
  
      ndarray.tolist = tolist
  
file_path: chainer/chainerx/_fallback_workarounds.py
imports: import numpy
  import chainerx
label_desc: Use image node_id 8 for calling a global function with example usage: _populate_ndarray() and returns: _to_chx, ret, old_getitem