9.1 Equatables

    9.2 Indexables

    9.3 Listables

    9.4 Sequences

    9.5 Appendables

    9.6 Comparables

    9.7 Membership Tests

    9.8 Printables

    9.9 Callables

    9.10 Closeables

    9.11 Serializables

      9.11.1 Serialization and Deserialization