initial commit: slides + practica_resueltos + README

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-05-29 11:50:55 +02:00
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+---
+layout: default
+---
+
+# Ejemplo: Usando Mensajes
+
+<div class="text-sm mt-6">
+
+```typescript
+import { ChatOpenAI } from "@langchain/openai";
+import {
+  SystemMessage,
+  HumanMessage
+} from "@langchain/core/messages";
+
+const model = new ChatOpenAI({ model: "gpt-4.1-mini" });
+
+const messages = [
+  new SystemMessage("Eres un experto en JavaScript y TypeScript"),
+  new HumanMessage("¿Qué es async/await?")
+];
+
+const response = await model.invoke(messages);
+
+console.log(response.content);
+// Respuesta contextualizada como experto en JS/TS
+```
+
+</div>