code: def test_assign__datetime(self, run):
      sample_datetime = datetime.now().replace(microsecond=0)
  
      with assert_no_warnings():
          run["datetime"] = Datetime(sample_datetime)
          run["datetime"] = Datetime(
              stringify_unsupported(sample_datetime)
          )
          run["datetime"] = stringify_unsupported(sample_datetime)
          run["datetime"] = sample_datetime
  
      assert run["datetime"].fetch() == sample_datetime
  
imports: import math
  from contextlib import contextmanager
  from datetime import datetime
  from typing import Any, Dict, Iterator, MutableMapping
  from pytest import fixture, raises, warns
  from neptune import init_run
  from neptune.common.warnings import NeptuneUnsupportedType, warned_once
  from neptune.constants import MAX_32_BIT_INT, MIN_32_BIT_INT
  from neptune.types import Artifact, Boolean, Datetime, Float, FloatSeries, Integer, String, StringSeries
  from neptune.utils import stringify_unsupported
label_desc: Use image node_id 13 for calling the TestStringifyUnsupported obj's underlying member method code with example usage: obj.test_assign__datetime(run) without return types