code: def _save_function(obj, path):
      make_target(file_path=path).dump(obj)
  
imports: import io
  import os
  import shutil
  import unittest
  from datetime import datetime
  from unittest.mock import patch
  import boto3
  import numpy
  import pandas
  from matplotlib import pyplot
  from moto import mock_s3
  from gokart.file_processor import _ChunkedLargeFileReader
  from gokart.target import make_model_target, make_target
label_desc: Use image node_id 2 for calling the ModelTargetTest obj's underlying member method code with example usage: obj._save_function(obj, path) without return types