code: def get_mol(smiles):
      mol = Chem.MolFromSmiles(smiles)
      if mol is None:
          return None
      Chem.Kekulize(mol)
      return mol
  
imports: import rdkit
  import rdkit.Chem
  from scipy.sparse import csr_matrix
  from scipy.sparse.csgraph import minimum_spanning_tree
  from collections import defaultdict
  from rdkit.Chem.EnumerateStereoisomers import EnumerateStereoisomers, StereoEnumerationOptions
  from .vocab import Vocab
label_desc: Use image node_id 2 for calling a global function with example usage: get_mol(smiles) and returns: mol, None