def METHOD_NAME(self, u=None, v=None):
    """Construct a frame at a point on the planar surface.
    Parameters
    ----------
    u : float, optional
        The first parameter.
        The parameter is optional, because the frame is the same everywhere.
    v : float, optional
        The second parameter.
        The parameter is optional, because the frame is the same everywhere.
    Returns
    -------
    :class:`compas.geometry.Frame`
        The frame.
    """
    return self.frame