{"ast_node_type":"other","tokens":[{"end":92,"kind":"keyword","start":0,"text":"multi_span.push_span_label(trait_span,"}]}
        multi_span.push_span_label(trait_span, format!("this is the trait that is needed"));
        let mut multi_span: MultiSpan = trait_span.into();
        let descr = self.tcx.associated_item(item_def_id).descr();