{"ast_node_type":"other","tokens":[{"end":99,"kind":"keyword","start":0,"text":"self.parse_ret_ty(AllowPlus::No,"}]}
                        self.parse_ret_ty(AllowPlus::No, RecoverQPath::No, RecoverReturnSign::No)?;
                    let output =
                    let span = ident.span.to(self.prev_token.span);