algoliasearch/src/offline/java/com/algolia/search/saas/MirroredIndex.java
public Request getObjectOfflineAsync(@NonNull final String objectID, @NonNull final CompletionHandler completionHandler) {
        return getObjectOfflineAsync(objectID, null, completionHandler);
    }
public Request getObjectOfflineAsync(@NonNull final String objectID, @NonNull final CompletionHandler completionHandler) {
        return getObjectOfflineAsync(objectID, null, completionHandler);
    }
Get an individual object, explicitly targeting the offline mirror, not the online API.

@param objectID Identifier of the object to retrieve.
@param completionHandler The listener that will be notified of the request's outcome.
@return A cancellable request.
@throws IllegalStateException if mirroring is not activated on this index.