code: def setup_rnn(use_input_variant, args, kwargs):
      with batch_second(
          args, kwargs
      ) if use_input_variant else allow_smaller_batches(args, kwargs):
          yield
  
imports: from contextlib import contextmanager
  import torch
  import functools
  from torch._decomp import decomposition_table
  from typing import Callable, Dict
  from torch.utils._pytree import tree_map_only
label_desc: Use image node_id 3 for calling a global function with example usage: setup_rnn(use_input_variant, args, kwargs) without return types