code: def node_output_device(graph):
      graph_out = list(graph.outputs())
      assert len(graph_out) == 1
      return graph_out[0].type().device()
  
imports: from itertools import product
  import unittest
  import torch
  from torch.testing._internal.common_utils import TEST_CUDA
  from torch.testing._internal.jit_utils import JitTestCase
  from torch.jit._passes._property_propagation import apply_input_props_using_example
label_desc: Use image node_id 2 for calling the TestDeviceAnalysis obj's underlying member method code with example usage: obj.node_output_device(graph) and returns: graph_out