The example demonstrates a round-trip file storage and retrieval process through a networked LevelDB database, verifying that a streamed file survives the write-read cycle unchanged. It uses `level-prefix` to namespace all keys under an `attachments-` prefix, while `multilevel` exposes the database over HTTP and `level-store` provides streaming read/write operations. The code reads the current source file, pipes it into `store.createWriteStream`, then reads it back with `store.createReadStream` and compares the original bytes against the concatenated chunks using Node’s `assert`.