The [single-proposal syncing service](https://github.com/NSLS2/nsls2api/blob/cfa9d2c08597b38e4df329e8bad6dc3242a206a1/src/nsls2api/services/sync_service.py#L395) needs a single-proposal version of this [method](https://github.com/NSLS2/nsls2api/blob/cfa9d2c08597b38e4df329e8bad6dc3242a206a1/src/nsls2api/services/sync_service.py#L360) analogous to how the [all-proposals syncing service](https://github.com/NSLS2/nsls2api/blob/cfa9d2c08597b38e4df329e8bad6dc3242a206a1/src/nsls2api/services/sync_service.py#L408) uses it.
The single-proposal syncing service needs a single-proposal version of this method analogous to how the all-proposals syncing service uses it.