{"ast_node_type":"variable","tokens":[{"end":68,"kind":"keyword","start":0,"text":"if"}]}
            if let Some(local_def_id) = alias_ty.def_id.as_local() {
            let ty::Alias(ty::Opaque, alias_ty) = *ty.kind() else { bug!() };
                let key = ty::OpaqueTypeKey { def_id: local_def_id, args: alias_ty.args };