How to use the exoplanet.citations.add_citations_to_model function in exoplanet

b=None,
        duration=None,
        ecc=None,
        omega=None,
        Omega=None,
        m_planet=0.0,
        m_star=None,
        r_star=None,
        rho_star=None,
        m_planet_units=None,
        rho_star_units=None,
        model=None,
        contact_points_kwargs=None,
        **kwargs
    ):
        add_citations_to_model(self.__citations__, model=model)

        self.kepler_op = KeplerOp(**kwargs)

        # Parameters
        if m_planet_units is not None:
            warnings.warn(
                "The `m_planet_units` argument has been deprecated. "
                "Use `with_unit` instead.",
                DeprecationWarning,
            )
            m_planet = with_unit(m_planet, m_planet_units)
        if rho_star_units is not None:
            warnings.warn(
                "The `rho_star_units` argument has been deprecated. "
                "Use `with_unit` instead.",
                DeprecationWarning,

def __init__(self, u, model=None):
        add_citations_to_model(self.__citations__, model=model)
        self.u = tt.as_tensor_variable(u)
        u_ext = tt.concatenate([-1 + tt.zeros(1, dtype=self.u.dtype), self.u])
        self.c = get_cl(u_ext)
        self.c_norm = self.c / (np.pi * (self.c[0] + 2 * self.c[1] / 3))

def __init__(self, *args, **kwargs):
        add_citations_to_model(self.__citations__, kwargs.get("model", None))

        # Make sure that the shape is compatible
        shape = kwargs.get("shape", 2)
        try:
            if list(shape)[0] != 2:
                raise ValueError("the first dimension should be exactly 2")
        except TypeError:
            if shape != 2:
                raise ValueError("the first dimension should be exactly 2")

        self.min_radius = kwargs.pop("min_radius", 0)
        self.max_radius = kwargs.pop("max_radius", 1)
        transform = tr.radius_impact(self.min_radius, self.max_radius)
        kwargs["shape"] = shape
        kwargs["transform"] = transform