# Libraries and libinstances

***IMPORTANT: This documentation section is a stub.***

**Relevant test examples:**

- [switch-select-stdlib.py](https://github.com/sjdv1982/seamless/tree/stable/tests/highlevel/switch-select-stdlib.py)

- [library.py](https://github.com/sjdv1982/seamless/tree/stable/tests/highlevel/library.py)

- [library2.py](https://github.com/sjdv1982/seamless/tree/stable/tests/highlevel/library2.py)

- [library-context-argument.py](https://github.com/sjdv1982/seamless/tree/stable/tests/highlevel/library-context-argument.py)

- [library-schema.py](https://github.com/sjdv1982/seamless/tree/stable/tests/highlevel/library-schema.py)

- [library-in-library.py](https://github.com/sjdv1982/seamless/tree/stable/tests/highlevel/library-in-library.py)

See [Running tests](https://sjdv1982.github.io/seamless/sphinx/html/getting-started.html#running-tests-locally) on how to execute tests.

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D4. Libraries and Library instances

Intro:

- Scatter transformers: TODO
- Nextflow-style channels (stdlib.channel )
- Gotcha: retranslate after setting a value
- Value and cell pins
- Celldict pins

Intermediate:

- Context pins
(link to: how the high level wraps the graph data structure)
- StaticContext
- Constructor
- Making your own library
- How libraries are embedded in the graph (link to: how the high level wraps the graph data structure)

In-depth:

- Elision
- Context schema and api schema

-->