code: def __setitem__(self, idx: int, val: Any):
      assert isinstance(idx, int)
      self.tree[idx] = val
  
imports: import numpy
  from typing import Any, Iterator, List, Tuple, Union
  from aim.storage.treeview import TreeView
  from aim.storage.arrayview import ArrayView
label_desc: Use image node_id 11 for calling the TreeArrayView obj's underlying member method code with example usage: obj.__setitem__(idx, val) without return types