code: def test_objectmapper(self):
      df = pdml.ModelFrame([])
      self.assertIs(
          df.manifold.LocallyLinearEmbedding,
          manifold.LocallyLinearEmbedding,
      )
      self.assertIs(df.manifold.Isomap, manifold.Isomap)
      self.assertIs(df.manifold.MDS, manifold.MDS)
      self.assertIs(
          df.manifold.SpectralEmbedding, manifold.SpectralEmbedding
      )
      self.assertIs(df.manifold.TSNE, manifold.TSNE)
  
file_path: pandas-ml/pandas_ml/skaccessors/test/test_manifold.py
imports: import pytest
  import numpy
  import sklearn.datasets
  import sklearn.manifold
  import pandas_ml
  import pandas_ml.util.testing
label_desc: Use image node_id 1 for calling the TestManifold obj's underlying member method code with example usage: obj.test_objectmapper() without return types