code: def test_from_to_pandas(self):
      data = [
          datetime.date(1994, 1, 31),
          datetime.date(1994, 2, 1),
          datetime.date(1994, 2, 2),
      ]
      pser = pd.Series(data)
      psser = ps.Series(data)
      self.assert_eq(pser, psser._to_pandas())
      self.assert_eq(ps.from_pandas(pser), psser)
  
imports: import datetime
  import pandas
  from pandas.api.types import CategoricalDtype
  from pyspark import pandas
  from pyspark.testing.pandasutils import PandasOnSparkTestCase
  from pyspark.pandas.tests.data_type_ops.testing_utils import OpsTestBase
label_desc: Use image node_id 24 for calling the DateOpsTestsMixin obj's underlying member method code with example usage: obj.test_from_to_pandas() without return types