code: def add_latent_style(self, name):
          
          lsdException = self._element.add_lsdException()
          lsdException.name = BabelFish.ui2internal(name)
          return _LatentStyle(lsdException)
docs: Return a newly added |_LatentStyle| object to override the inherited
          defaults defined in this latent styles object for the built-in style
          having *name*.