`@envelop/useApolloInlineTrace` plugin which alters the result `extensions` field to include tracing information. References: - [Federated trace data](https://www.apollographql.com/docs/federation/metrics/) - [Apollo's inline trace plugin](https://www.apollographql.com/docs/apollo-server/api/plugin/inline-trace/) - [`ApolloServerPluginInlineTrace`](https://github.com/apollographql/apollo-server/blob/main/packages/apollo-server-core/src/plugin/inlineTrace/index.ts) - [`TraceTreeBuilder`](https://github.com/apollographql/apollo-server/blob/main/packages/apollo-server-core/src/plugin/traceTreeBuilder.ts) Additional things: - [Apollo's `GraphQLRequestMetrics`](https://github.com/apollographql/apollo-server/blob/9389da785567a56e989430962564afc71e93bd7f/packages/apollo-server-types/src/index.ts#L120-L133)