From a50f070a8a47cf13d3f7b8686c9652247710ca02 Mon Sep 17 00:00:00 2001
From: Yogananda Muthaiah <yogananda.muthaiah@gmail.com>
Date: Sun, 1 Dec 2024 09:39:16 +0100
Subject: [PATCH] Update chapter1.md

---
 chapter1.md | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/chapter1.md b/chapter1.md
index 8b13789..57540eb 100644
--- a/chapter1.md
+++ b/chapter1.md
@@ -1 +1,19 @@
+## Chapter 1: What is LangChain?
+LangChain is an open source library for simplifying AI application development. It provides a set of tools to efficiently perform various AI-related tasks, with a focus on Large Scale Language Models (LLMs).
 
+```
+from langchain import LLMChain
+from langchain.llms import OpenAI
+from langchain.prompts import PromptTemplate
+
+# LangChain
+llm = OpenAI(temperature=0.9)
+prompt = PromptTemplate(
+    input_variables=["product"],
+    template="What is a good name for a company that makes {product}?",
+)
+chain = LLMChain(llm=llm, prompt=prompt)
+
+
+print(chain.run("eco-friendly water bottles"))
+```