{"ast_node_type":"other","tokens":[{"end":40,"kind":"keyword","start":0,"text":"match"}]}
                match b.skip_binders() {
            TyKind::Dyn(dyn_ty) => dyn_ty.bounds.skip_binders().interned().first().and_then(|b| {
                    WhereClause::Implemented(trait_ref) => Some(trait_ref),