The title placeholder shape on the slide or |None| if the slide has
        no title placeholder.

def title(self):
        """
        The title placeholder shape on the slide or |None| if the slide has
        no title placeholder.
        """
        for elm in self._spTree.iter_ph_elms():
            if elm.ph_idx == 0:
                return self._shape_factory(elm)
        return None