write!(f, "{}", "<div")? ;
write!(f, ">")? ;
write!(f, "{}", "\n  ")? ;
write!(f, "{}", "<h1")? ;
write!(f, ">")? ;
write!(f, "{}", "\n    ")? ;
self._slots.render(f, "title")? ;
write!(f, "{}", "\n  ")? ;
write!(f, "{}", "</h1>")? ;
write!(f, "{}", "\n  ")? ;
self._slots.render(f, "default")? ;
write!(f, "{}", "\n")? ;
write!(f, "{}", "</div>")? ;