class_docstr: Test pickler and unpickler using the .hvz format, including
  metadata access.
code: def test_pickler_save_and_load_data_1(self, tmp_path):
      Pickler.save(
          self.image1,
          tmp_path / "test_pickler_save_and_load_data_1.hvz",
      )
      loaded = Unpickler.load(
          tmp_path / "test_pickler_save_and_load_data_1.hvz"
      )
      assert_element_equal(loaded, self.image1)
  
imports: import numpy
  from holoviews import Image, Layout
  from holoviews.core.io import Deserializer, Pickler, Serializer, Unpickler
  from holoviews.element.comparison import assert_element_equal
label_desc: Use image node_id 4 for calling the TestBasicPickler obj's underlying member method code with example usage: obj.test_pickler_save_and_load_data_1(tmp_path) without return types