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# What does this implement/fix? Follow-up to #5445, which removed two unreachable branches from the Sonos S1 error helper but left the scaffolding around them in place. The helper still took an untyped `instance` and guarded against it not holding a speaker connection. That guard can never run: the decorator only accepts methods on a Sonos player, and mypy already rejects anything else where the decorator is applied. With the guard gone, the small lookup it protected has a single caller and reads better inline. - Type the helper against `SonosPlayer` instead of `Any` - Drop the unreachable "unexpected use" guard - Fold the single-caller speaker-name lookup into its only caller No behaviour change. **Related issue (if applicable):** - n/a ## Types of changes - [ ] Bugfix (non-breaking change which fixes an issue) — `bugfix` - [ ] New feature (non-breaking change which adds functionality) — `new-feature` - [ ] Enhancement to an existing feature — `enhancement` - [ ] New music/player/metadata/plugin provider — `new-provider` - [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected) — `breaking-change` - [ ] Refactor (no behaviour change) — `refactor` - [ ] Documentation only — `documentation` - [x] Maintenance / chore — `maintenance` - [ ] CI / workflow change — `ci` - [ ] Dependencies bump — `dependencies` ## Checklist - [x] The code change is tested and works locally. - [x] `pre-commit run --all-files` passes. - [x] `pytest` passes, and tests have been added/updated under `tests/` where applicable. - [ ] For changes to shared models, the companion PR in `music-assistant/models` is linked. - [ ] For changes affecting the UI, the companion PR in `music-assistant/frontend` is linked. - [x] I have read and complied with the project's [AI Policy](https://github.com/music-assistant/.github/blob/main/AI_POLICY.md) for any AI-assisted contributions. - [ ] I have [raised a PR against the documentation repository](https://github.com/music-assistant/music-assistant.io/blob/main/CONTRIBUTING.md) targeting the main or beta branch as appropriate.