code: def test_convert_value_datetime():
      feature = feature_lib.Scalar(dtype=np.int64)
      epoch_start = datetime.datetime(
          1970, 1, 1, tzinfo=datetime.timezone.utc
      )
      assert (
          huggingface_dataset_builder._convert_value(
              epoch_start, feature
          )
          == 0
      )
      assert (
          huggingface_dataset_builder._convert_value(
              datetime.datetime(
                  1970, 1, 2, tzinfo=datetime.timezone.utc
              ),
              feature,
          )
          == 86400
      )
  
imports: import datetime
  from unittest import mock
  from absl import logging
  import numpy
  import pytest
  import tensorflow
  from tensorflow_datasets.core import features
  from tensorflow_datasets.core import lazy_imports_lib
  from tensorflow_datasets.core import registered
  from tensorflow_datasets.core.dataset_builders import huggingface_dataset_builder
label_desc: Use image node_id 5 for calling a global function with example usage: test_convert_value_datetime() without return types