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
2.0 KiB
JavaScript
58 lines
2.0 KiB
JavaScript
// Slide 22: Long-term memory -- InMemoryStore + namespace
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// Code slide: cross-thread memory, semantic search over stored facts.
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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: 'Memory',
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title: 'Долгосрочная память: store + namespace',
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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/memory_long.py',
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code: [
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'from langgraph.store.memory import InMemoryStore',
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'from langchain.agents import create_agent',
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'from langchain.embeddings import init_embeddings',
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'',
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'# Store может быть in-memory (dev) или Postgres (prod)',
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'store = InMemoryStore(',
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' index={"embed": init_embeddings("openai:text-embedding-3-small"),',
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' "dims": 1536},',
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')',
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'',
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'agent = create_agent(',
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' model="openai:gpt-4.1-mini",',
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' tools=[...],',
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' store=store,',
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')',
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'',
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'# Namespace = ("user-id", "facts") -- разделение по пользователям',
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'ns = ("user-42", "facts")',
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'store.put(ns, "pref-1", {"text": "User prefers concise answers."})',
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'',
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'# В новой сессии store.search(ns, query="preferences") вернёт факты',
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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: 'info',
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text: 'Long-term memory переживает thread. Идеальна для user preferences, summary прошлых сессий, learned facts.',
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});
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ds.helpers.addSourceLine(slide, pres, theme, {
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source: 'docs.langchain.com/oss/python/langgraph/memory',
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});
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ds.helpers.addPageNumber(slide, pres, theme, 22);
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}
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module.exports = { createSlide }; |