code: def get_output(graph: fx.Graph) -> fx.Node:
      """Take a graphmodule and return the graph output node.
  
      We traverse in reverse to expedite it, with the idea that last node should be output
      """
      for node in reversed(graph.nodes):
          if node.op == OP.OUTPUT:
              return node
      raise RuntimeError(f"Cannot find the output node in {graph}")
  
imports: import logging
  import os
  import tempfile
  from enum import Enum
  from typing import Callable, cast, Dict, Iterable, List, Set
  import torch.fx
  from torch.fx.passes.shape_prop import TensorMetadata
  from torch.utils import _pytree
  from torch.utils._pytree import tree_flatten, tree_unflatten
label_desc: Use image node_id 2 for calling a global function with example usage: get_output(graph) and returns: node