code: def test_series_iloc_setitem(self):
      pdf = pd.DataFrame(
          {"x": [1, 2, 3], "y": [4, 5, 6]},
          index=["cobra", "viper", "sidewinder"],
      )
      psdf = ps.from_pandas(pdf)
  
      pser = pdf.x
      psery = pdf.y
      psser = psdf.x
      pssery = psdf.y
  
      piloc = pser.iloc
      kiloc = psser.iloc
  
      pser1 = pser + 1
      psser1 = psser + 1
  
      for key, value in [
          ([1, 2], 10),
          (1, 50),
          (slice(None), 10),
          (slice(None, 1), 20),
          (slice(1, None), 30),
      ]:
          with self.subTest(key=key, value=value):
              pser.iloc[key] = value
              psser.iloc[key] = value
              self.assert_eq(psser, pser)
              self.assert_eq(psdf, pdf)
              self.assert_eq(pssery, psery)
  
              piloc[key] = -value
              kiloc[key] = -value
              self.assert_eq(psser, pser)
              self.assert_eq(psdf, pdf)
              self.assert_eq(pssery, psery)
  
              pser1.iloc[key] = value
              psser1.iloc[key] = value
              self.assert_eq(psser1, pser1)
              self.assert_eq(psdf, pdf)
              self.assert_eq(pssery, psery)
  
      with self.assertRaises(ValueError):
          psser.iloc[1] = -psser
  
      pser = pd.Index([1, 2, 3]).to_series()
      psser = ps.Index([1, 2, 3]).to_series()
  
      pser1 = pser + 1
      psser1 = psser + 1
  
      pser.iloc[0] = 10
      psser.iloc[0] = 10
      self.assert_eq(psser, pser)
  
      pser1.iloc[0] = 20
      psser1.iloc[0] = 20
      self.assert_eq(psser1, pser1)
  
      pdf = pd.DataFrame({"a": [1, 2, 3], "b": [4, 5, 6]})
      psdf = ps.from_pandas(pdf)
  
      pser = pdf.a
      psser = psdf.a
  
      pser.iloc[[0, 1, 2]] = -pdf.b
      psser.iloc[[0, 1, 2]] = -psdf.b
      self.assert_eq(psser, pser)
      self.assert_eq(psdf, pdf)
  
      with self.assertRaisesRegex(
          ValueError, "setting an array element with a sequence."
      ):
          psser.iloc[1] = psdf[["b"]]
  
imports: import unittest
  import numpy
  import pandas
  from pyspark import pandas
  from pyspark.pandas.exceptions import SparkPandasIndexingError, SparkPandasNotImplementedError
  from pyspark.testing.pandasutils import PandasOnSparkTestCase
  from pyspark.testing.sqlutils import SQLTestUtils
label_desc: Use image node_id 11 for calling the IndexingILocMixin obj's underlying member method code with example usage: obj.test_series_iloc_setitem() without return types