code: def __repr__(self):
      child_repr = ", ".join(map(str, self.children))
      return f"{self.__class__.__name__}[{child_repr}]"
  
imports: import itertools
  from collections.abc import Sequence
  from typing import List, Optional, Set, Tuple, Union
  import torch
label_desc: Use image node_id 5 for calling the AdapterCompositionBlock obj's underlying member method code with example usage: obj.__repr__() and returns: self, str, child_repr, str