code: def test_raises_error_when_df_has_nan():
      # dataset containing nans
      with pytest.raises(ValueError):
          DatetimeFeatures().fit(dates_nan)
      with pytest.raises(ValueError):
          DatetimeFeatures(variables="index").fit(dates_idx_nan)
  
imports: import numpy
  import pandas
  import pytest
  from sklearn.exceptions import NotFittedError
  from sklearn.pipeline import Pipeline
  from feature_engine.datetime import DatetimeFeatures
  from feature_engine.datetime._datetime_constants import FEATURES_DEFAULT, FEATURES_SUFFIXES, FEATURES_SUPPORTED
label_desc: Use image node_id 7 for calling a global function with example usage: test_raises_error_when_df_has_nan() without return types