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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def fit(self, mol1, mol2):
 """ Fit two molecules. Args: mol1: First molecule. OpenBabel OBMol or pymatgen Molecule object mol2: Second molecule. OpenBabel OBMol or pymatgen Molecule object Returns: A boolean value indicates whether two molecules are the same. """

        return self.get_rmsd(mol1, mol2) < self._tolerance