petya
75601988c2
- Cover, TOC, 5 dividers, 3 recap slides - 5 sections (chains, langgraph, deepagents, openswe, ecosystem) - design-system.js with theme tokens + 9 helper functions - research/: timeline + sources + per-tech notes - final-compile.js + merge.js for rebuild pipeline - output/: langchain-evolution.pptx (2.3 MB) + langchain-evolution.pdf (1.1 MB) + 7 sample previews
58 lines
2.1 KiB
JavaScript
58 lines
2.1 KiB
JavaScript
// Slide 15: Async + configurable -- ainvoke/astream + chain.config
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// Code slide: how to use chains from async code and override params at call site.
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const ds = require('./design-system');
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function createSlide(pres, theme) {
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const slide = pres.addSlide();
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ds.helpers.slideBase(slide, pres, theme);
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ds.helpers.addHeader(slide, pres, theme, {
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eyebrow: 'STAGE 1: CHAINS',
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section: 'Runnable',
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title: 'async + config -- полный контроль',
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sectionNumber: 1,
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});
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ds.helpers.addCodeBlock(slide, pres, theme, {
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x: 0.5, y: 1.5, w: 9.0, h: 3.25,
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language: 'python',
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filePath: 'examples/runnable_async.py',
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code: [
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'import asyncio',
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'from langchain_core.runnables import ConfigurableField',
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'',
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'# Любой Runnable имеет ainvoke / astream / abatch',
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'async def main():',
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' # Один async-вызов',
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' result = await chain.ainvoke({"language": "French", "text": "Hi"})',
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'',
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' # Async stream',
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' async for chunk in chain.astream({"language": "French", "text": "Hi"}):',
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' print(chunk, end="", flush=True)',
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'',
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'asyncio.run(main())',
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'',
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'# configurable_fields -- параметры, которые можно переопределять',
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'# на лету через config={"configurable": {...}}',
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'configurable_chain = init_chat_model("openai:gpt-4.1-mini",',
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' temperature=0.7).configurable_fields(',
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' temperature=ConfigurableField(id="temperature"),',
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')',
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'# configurable_chain.invoke(messages, config={"configurable": {"temperature": 0.0}})',
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].join('\n'),
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});
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ds.helpers.addCallout(slide, pres, theme, {
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x: 0.5, y: 4.85, w: 9.0, h: 0.3,
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kind: 'success',
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text: 'configurable_fields + config={"configurable": {...}} -- паттерн для multi-tenant LLM-приложений.',
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});
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ds.helpers.addSourceLine(slide, pres, theme, {
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source: 'python.langchain.com/docs/how_to/configurable/',
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});
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ds.helpers.addPageNumber(slide, pres, theme, 15);
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}
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module.exports = { createSlide }; |