def METHOD_NAME(self, datapoint: RDKitMol, **kwargs) -> np.ndarray:
    """
    Calculate Mordred descriptors.
    Parameters
    ----------
    datapoint: rdkit.Chem.rdchem.Mol
        RDKit Mol object
    Returns
    -------
    np.ndarray
        1D array of mol2vec fingerprint. The default length is 300.
    """
    if 'mol' in kwargs:
        datapoint = kwargs.get("mol")
        raise DeprecationWarning(
            'Mol is being phased out as a parameter, please pass "datapoint" instead.'
        )
    sentence = self.mol2alt_sentence(datapoint, self.radius)
    feature = self.sentences2vec([sentence], self.model,
                                 unseen=self.unseen)[0]
    return feature