code: def list_stack(list_, opts):
      """The list stack function.
  
      This does not have a direct correspondent in Python. The closest idiom to
      this is tf.append or np.stack. It's different from those in the sense that it
      accepts a Tensor list, rather than a list of tensors. It can also accept
      TensorArray. When the target is anything else, the dispatcher will rely on
      ctx.original_call for fallback.
  
      Args:
        list_: An entity that supports append semantics.
        opts: A ListStackOpts object.
  
      Returns:
        The output of the stack operation, typically a Tensor.
      """
      assert isinstance(opts, ListStackOpts)
  
      if hooks._DISPATCH.detect_overload_list_stack(list_):
          return hooks._DISPATCH.list_stack(list_, opts)
      else:
          return _py_list_stack(list_, opts)
  
file_path: DALI/dali/python/nvidia/dali/_autograph/operators/data_structures.py
imports: import collections
  from nvidia.dali._autograph.utils import hooks
label_desc: Use image node_id 7 for calling a global function with example usage: list_stack(list_, opts) and returns: hooks, _py_list_stack