Translate Code From One Language to Another

    Translate the code below from {{source_language}} to {{target_language}}.

Code:
{{code}}

Guidelines:
- Write idiomatic {{target_language}} — use its standard library, naming conventions, and error-handling patterns, not a line-by-line transliteration.
- Preserve the original behavior. If a construct has no direct equivalent, choose the closest idiomatic approach and note the difference.
- Call out anything that can't translate cleanly (language-specific features, libraries with no equivalent, differences in numeric, string, or concurrency behavior) rather than silently papering over it.

Return the translated code, then a short list of the notable decisions or caveats. If part of the original relies on context you can't see, ask.