class_docstr: Test pickler and unpickler using the .hvz format, including
  metadata access.
code: def test_pickler_save_and_load_info(self, tmp_path):
      input_info = {"info": "example"}
      Pickler.save(
          self.image1,
          tmp_path / "test_pickler_save_and_load_data.hvz",
          info=input_info,
      )
      info = Unpickler.info(
          tmp_path / "test_pickler_save_and_load_data.hvz"
      )
      assert info["info"] == input_info["info"]
  
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 7 for calling the TestBasicPickler obj's underlying member method code with example usage: obj.test_pickler_save_and_load_info(tmp_path) without return types