code: def test_objectmapper(self):
      df = pdml.ModelFrame([])
      self.assertIs(
          df.cross_decomposition.PLSRegression, cd.PLSRegression
      )
      self.assertIs(
          df.cross_decomposition.PLSCanonical, cd.PLSCanonical
      )
      self.assertIs(df.cross_decomposition.CCA, cd.CCA)
      self.assertIs(df.cross_decomposition.PLSSVD, cd.PLSSVD)
  
file_path: pandas-ml/pandas_ml/skaccessors/test/test_cross_decomposition.py
imports: import pytest
  import numpy
  import pandas
  import sklearn.cross_decomposition
  import pandas_ml
  import pandas_ml.util.testing
label_desc: Use image node_id 1 for calling the TestCrossDecomposition obj's underlying member method code with example usage: obj.test_objectmapper() without return types