code: def test_get_aten_name_on_supported_fx_node(
      self, node: torch.fx.Node, expected_name: str
  ):
      expected_name_class = registration.OpName.from_name_parts(
          *expected_name
      )
      self.assertEqual(
          self.dispatcher._get_aten_name(node, self.diagnostic_context),
          expected_name_class,
      )
  
imports: from __future__ import annotations
  import logging
  import operator
  from typing import TypeVar, Union
  import onnxscript
  import torch
  import torch.fx
  from onnxscript import BFLOAT16, DOUBLE, FLOAT, FLOAT16
  from onnxscript.function_libs.torch_lib import ops
  from onnxscript.onnx_opset import opset15
  from torch.onnx._internal.diagnostics import infra
  from torch.onnx._internal.fx import analysis, diagnostics, onnxfunction_dispatcher, registration
  from torch.testing._internal import common_utils
label_desc: Use image node_id 2 for calling the TestDispatcher obj's underlying member method code with example usage: obj.test_get_aten_name_on_supported_fx_node(node, expected_name) without return types