code: def test_datetime_categorical_comparison(self):
      dt_cat = Categorical(
          date_range("2014-01-01", periods=3), ordered=True
      )
      tm.assert_numpy_array_equal(
          dt_cat > dt_cat[0], np.array([False, True, True])
      )
      tm.assert_numpy_array_equal(
          dt_cat[0] < dt_cat, np.array([False, True, True])
      )
  
imports: import numpy
  import pytest
  import pandas
  from pandas import Categorical, DataFrame, Series, Timestamp, date_range
  import pandas._testing
label_desc: Use image node_id 4 for calling the TestCategoricalOps obj's underlying member method code with example usage: obj.test_datetime_categorical_comparison() without return types