code: def test_map(self):
      pser = pd.Series(["cat", "dog", None, "rabbit"])
      psser = ps.from_pandas(pser)
  
      # dict correspondence
      # Currently pandas API on Spark doesn't return NaN as pandas does.
      self.assert_eq(
          psser.map({}), pser.map({}).replace({np.nan: None})
      )
  
      d = defaultdict(lambda: "abc")
      self.assertTrue("abc" in repr(psser.map(d)))
      self.assert_eq(psser.map(d), pser.map(d))
  
      # series correspondence
      pser_to_apply = pd.Series(
          ["one", "two", "four"], index=["cat", "dog", "rabbit"]
      )
      self.assert_eq(psser.map(pser_to_apply), pser.map(pser_to_apply))
      self.assert_eq(
          psser.map(pser_to_apply, na_action="ignore"),
          pser.map(pser_to_apply, na_action="ignore"),
      )
  
      # function correspondence
      self.assert_eq(
          psser.map(lambda x: x.upper(), na_action="ignore"),
          pser.map(lambda x: x.upper(), na_action="ignore"),
      )
  
      def to_upper(string) -> str:
          return string.upper() if string else ""
  
      self.assert_eq(psser.map(to_upper), pser.map(to_upper))
  
      def tomorrow(date) -> datetime:
          return date + timedelta(days=1)
  
      pser = pd.Series([datetime(2019, 10, 24)])
      psser = ps.from_pandas(pser)
      self.assert_eq(psser.map(tomorrow), pser.map(tomorrow))
  
imports: import unittest
  from collections import defaultdict
  import inspect
  from datetime import datetime, timedelta
  import numpy
  import pandas
  from pyspark.ml.linalg import SparseVector
  from pyspark import pandas
  from pyspark.testing.pandasutils import PandasOnSparkTestCase, SPARK_CONF_ARROW_ENABLED
  from pyspark.testing.sqlutils import SQLTestUtils
  from pyspark.pandas.exceptions import PandasNotImplementedError
  from pyspark.pandas.missing.series import MissingPandasLikeSeries
  from pyspark.pandas.typedef.typehints import extension_object_dtypes_available
label_desc: Use image node_id 22 for calling the SeriesTestsMixin obj's underlying member method code with example usage: obj.test_map() and returns: unknown, unknown