class_docstr: Test MATFeaturizer.
docstr: Set up tests.
docstr_tok: ["Set","up","tests","."]
code: def setUp(self):
      """
      Set up tests.
      """
      from rdkit import Chem
  
      smiles = "CC"
      self.mol = Chem.MolFromSmiles(smiles)
  
imports: import unittest
  from deepchem.feat import MATFeaturizer
  import numpy
label_desc: Use image node_id 1 for calling the TestMATFeaturizer obj's underlying member method code with example usage: obj.setUp() without return types