# Backend internal interview (rust) - basic-fixed > [!NOTE] > Code simply **works as expected** > It is not be able to **process multiple metrics in parallel** yet. > A full refactoring has to be done for better quality, maintenance and be more readable. (Structs, implementaitions, settings for multiple inputs, etc). See [main changes](/NewRelic/be-technical-interview-rust/src/branch/basic-fixed/CHANGES.md) A **Refactor metric-consumer** task [Home Task exercise description](Home-Task_exercise_interview_Rust.pdf) There are several branches developed as proposal: - [Basic fixed one](/NewRelic/be-technical-interview-rust/src/branch/basic-fixed) > A basic code review, fixed with minor and essential changes to work as expected. > Tests are included for verification. - [Improve one](/NewRelic/be-technical-interview-rust/src/branch/improved)