code: def test_regular(self):
      primitive_instance = Season()
      primitive_func = primitive_instance.get_function()
      case = pd.date_range(
          start="2019-01", periods=12, freq="m"
      ).to_series()
      answer = pd.Series(
          [
              "winter",
              "winter",
              "spring",
              "spring",
              "spring",
              "summer",
              "summer",
              "summer",
              "fall",
              "fall",
              "fall",
              "winter",
          ],
          dtype="string",
      )
      given_answer = primitive_func(case)
      pd.testing.assert_series_equal(
          given_answer.reset_index(drop=True),
          answer.reset_index(drop=True),
      )
  
imports: from datetime import datetime
  import pandas
  from featuretools.primitives import Season
label_desc: Use image node_id 1 for calling the TestSeason obj's underlying member method code with example usage: obj.test_regular() without return types