{"ast_node_type":"other","tokens":[{"end":63,"kind":"keyword","start":0,"text":".filter_map(|(pred,"}]}
                .filter_map(|(pred, _)| pred.as_trait_clause())
                .iter_identity_copied()
                .filter(|pred| !cx.tcx.is_lang_item(pred.def_id(), hir::LangItem::MetaSized));