@classmethod
def graph_laplacian(cls, epsilon=1.0, n_eigenpairs=10, **kwargs
    ) ->'DiffusionMaps':
    """Instantiate new model to approximate graph Laplacian.

        Returns
        -------
        DiffusionMaps
            new instance
        """
    return cls(epsilon=epsilon, n_eigenpairs=n_eigenpairs, is_stochastic=
        True, alpha=0.0, **kwargs)
