code: def test_save_to_file_default_serializer(self):
      with common_utils.TemporaryFileName() as path:
          dynamo_export(SampleModel(), torch.randn(1, 1, 2)).save(path)
          onnx.load(path)
  
imports: import io
  import os
  import onnx
  import torch
  from beartype import roar
  from torch.onnx import dynamo_export, ExportOptions, ONNXProgram
  from torch.onnx._internal import exporter, io_adapter
  from torch.onnx._internal.exporter import LargeProtobufONNXProgramSerializer, ONNXProgramSerializer, ProtobufONNXProgramSerializer, ResolvedExportOptions
  from torch.onnx._internal.fx import diagnostics
  from torch.testing._internal import common_utils
label_desc: Use image node_id 3 for calling the TestDynamoExportAPI obj's underlying member method code with example usage: obj.test_save_to_file_default_serializer() without return types