code: def test_align(self):
      pdf = pd.DataFrame({"a": [1, 2, 3], "b": ["a", "b", "c"]})
      psdf = ps.from_pandas(pdf)
  
      for join in ["outer", "inner", "left", "right"]:
          for axis in [None, 0]:
              psser_l, psser_r = psdf.a.align(
                  psdf.b, join=join, axis=axis
              )
              pser_l, pser_r = pdf.a.align(pdf.b, join=join, axis=axis)
              self.assert_eq(psser_l, pser_l)
              self.assert_eq(psser_r, pser_r)
  
              psser_l, psdf_r = psdf.b.align(
                  psdf[["b", "a"]], join=join, axis=axis
              )
              pser_l, pdf_r = pdf.b.align(
                  pdf[["b", "a"]], join=join, axis=axis
              )
              self.assert_eq(psser_l, pser_l)
              self.assert_eq(psdf_r, pdf_r)
  
      self.assertRaises(
          ValueError, lambda: psdf.a.align(psdf.b, axis=1)
      )
  
imports: import unittest
  import numpy
  import pandas
  from pyspark import pandas
  from pyspark.testing.pandasutils import ComparisonTestBase
  from pyspark.testing.sqlutils import SQLTestUtils
label_desc: Use image node_id 1 for calling the SeriesIndexMixin obj's underlying member method code with example usage: obj.test_align() without return types