{"ast_node_type":"other","tokens":[{"end":87,"kind":"keyword","start":0,"text":"self.psess.gated_spans.gate(sym::async_trait_bounds,"}]}
            self.psess.gated_spans.gate(sym::async_trait_bounds, self.prev_token.span);
            });
            BoundAsyncness::Async(self.prev_token.span)