I think I need to switch back to a vec.

But with all I've built with IntoContextElement and BreadcrumbTreeElement I think the Vec will end up working in the end.

src/renderer/renderer.rs

@@ -356,13 +356,6 @@ impl<'a> DustRenderer<'a> {
         }
         final_filters
     }
-
-    fn append_new_elements_onto_tree<'b>(
-        original_parent: Option<&'b BreadcrumbTree>,
-        new_elements: Vec<BreadcrumbTreeElement<'b>>,
-    ) -> Option<BreadcrumbTree<'b>> {
-        todo!()
-    }
 }
 
 struct BlockContext<'a> {