# Lesson 13: Расширяемость / Асинхронная обработка (source pending)

> Native Markdown source page: Расширяемость / Асинхронная обработка

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LLMS index: [llms.txt](/en/llms.txt)

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> [!WARNING]
> The current public material inventory does not contain an English archive for this course. This page keeps the English route and topic key ready for a future source edition.

## Source slot

- Course: `DEV2`
- Topic key: `dev2_13_ext_async`
- Russian reference title: Расширяемость / Асинхронная обработка

The Russian edition is available through the language selector. No English source body is claimed on this page.