private static String storageConfigPrefix(String testClassName, String key) {
        return "rsm.config." + testClassName + "." + key;
    }
Get the records found in the local tiered storage.
Snapshot does not sort the filesets by base offset.
@param context The test context.
@param topicPartition The topic-partition of the records.
@return The records found in the local tiered storage.
storage/src/test/java/org/apache/kafka/tiered/storage/utils/TieredStorageTestUtils.java