def METHOD_NAME(self, r, rho0, Rs, e1=0, e2=0):
    """Computes the 3-d density.
    :param r: 3-d radius
    :param rho0: density normalization
    :param Rs: Hernquist radius
    :return: density at radius r
    """
    return self.spherical.METHOD_NAME(r, rho0, Rs)