code: def test_save_and_load_npz(self):
      obj = np.ones(shape=10, dtype=np.float32)
      file_path = os.path.join(_get_temporary_directory(), "test.npz")
      target = make_target(file_path=file_path, unique_id=None)
      target.dump(obj)
      loaded = target.load()
  
      np.testing.assert_almost_equal(obj, loaded)
  
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 5 for calling the LocalTargetTest obj's underlying member method code with example usage: obj.test_save_and_load_npz() without return types