#context-aware

[ai-network]

Introduction to the LangChain Framework

LangChain is an open-source framework designed to simplify and enhance the development of applications powered by large language models (LLMs). By combining prompt engineering, chaining processes, and integrations with external systems, LangChain enables developers to build applications with powerful reasoning and contextual capabilities. This tutorial introduces the core components of LangChain, highlights its strengths, and provides practical steps to build your first LangChain-powered application.

What is LangChain?

LangChain is a framework that lets you connect LLMs like OpenAI's GPT models with external tools, data sources, and complex workflows. It focuses on enabling three key capabilities: - Chaining: Create sequences of operations or prompts for more complex interactions. - Memory: Maintain contextual memory for multi-turn conversations or iterative tasks. - Tool Integration: Connect LLMs with APIs, databases, or custom functions. LangChain is modular, meaning you can use specific components as needed or combine them into a cohesive application.

Getting Started

Installation First, install the LangChain package using pip: pip install langchain Additionally, you'll need to install an LLM provider (e.g., OpenAI or Hugging Face) and any tools you plan to integrate: pip install openai

Core Concepts in LangChain

1. Chains Chains are sequences of steps that process inputs and outputs through the LLM or other components. Examples include: - Sequential chains: A linear series of tasks. - Conditional chains: Tasks that branch based on conditions. 2. Memory LangChain offers memory modules for maintaining context across multiple interactions. This is particularly useful for chatbots and conversational agents. 3. Tools and Plugins LangChain supports integrations with APIs, databases, and custom Python functions, enabling LLMs to interact with external systems. 4. Agents Agents dynamically decide which tool or chain to use based on the user’s input. They are ideal for multi-tool workflows or flexible decision-making.

Building Your First LangChain Application

In this section, we’ll build a LangChain app that integrates OpenAI’s GPT API, processes user queries, and retrieves data from an external source. Step 1: Setup and Configuration Before diving in, configure your OpenAI API key: import os from langchain.llms import OpenAI # Set API Key os.environ = "your-openai-api-key" # Initialize LLM llm = OpenAI(model_name="text-davinci-003") Step 2: Simple Chain Create a simple chain that takes user input, processes it through the LLM, and returns a result. from langchain.prompts import PromptTemplate from langchain.chains import LLMChain # Define a prompt template = PromptTemplate( input_variables=, template="Explain {topic} in simple terms." ) # Create a chain simple_chain = LLMChain(llm=llm, prompt=template) # Run the chain response = simple_chain.run("Quantum computing") print(response) Step 3: Adding Memory To make the application context-aware, we add memory. LangChain supports several memory types, such as conversational memory and buffer memory. from langchain.chains import ConversationChain from langchain.memory import ConversationBufferMemory # Add memory to the chain memory = ConversationBufferMemory() conversation = ConversationChain(llm=llm, memory=memory) # Simulate a conversation print(conversation.run("What is LangChain?")) print(conversation.run("Can it remember what we talked about?")) Step 4: Integrating Tools LangChain can integrate with APIs or custom tools. Here’s an example of creating a tool for retrieving Wikipedia summaries.   from langchain.tools import Tool # Define a custom tool def wikipedia_summary(query: str): import wikipedia return wikipedia.summary(query, sentences=2) # Register the tool wiki_tool = Tool(name="Wikipedia", func=wikipedia_summary, description="Retrieve summaries from Wikipedia.") # Test the tool print(wiki_tool.run("LangChain")) Step 5: Using Agents Agents allow dynamic decision-making in workflows. Let’s create an agent that decides whether to fetch information or explain a topic. from langchain.agents import initialize_agent, Tool from langchain.agents import AgentType # Define tools tools = # Initialize agent agent = initialize_agent(tools, llm, agent=AgentType.ZERO_SHOT_REACT_DESCRIPTION, verbose=True) # Query the agent response = agent.run("Tell me about LangChain using Wikipedia.") print(response) Advanced Topics 1. Connecting with Databases LangChain can integrate with databases like PostgreSQL or MongoDB to fetch data dynamically during interactions. 2. Extending Functionality Use LangChain to create custom logic, such as summarizing large documents, generating reports, or automating tasks. 3. Deployment LangChain applications can be deployed as web apps using frameworks like Flask or FastAPI. Use Cases - Conversational Agents: Develop context-aware chatbots for customer support or virtual assistance. - Knowledge Retrieval: Combine LLMs with external data sources for research and learning tools. - Process Automation: Automate repetitive tasks by chaining workflows. Conclusion LangChain provides a robust and modular framework for building applications with large language models. Its focus on chaining, memory, and integrations makes it ideal for creating sophisticated, interactive applications. This tutorial covered the basics, but LangChain’s potential is vast. Explore the official LangChain documentation for deeper insights and advanced capabilities. Happy coding! Read the full article

[lucabyte]

even dogs pass the mirror test

[tinkerbitch69]

Caption from Robin #101

Why yes, Tim Drake, I will call you a spoiled, squeamish , bourgie white boy actually.

[vigilskept]

this whole idea in both the fandom and the games themselves that being a people attached to their past & a lost civilization is a failing whereas a celebration of the present is something to strive for wrt elven & dwarven culture is something that reads as fundamentally western & liberal to me.

[diamondcitydarlin]

diving back into msscribe lore made me remember this; imo one of the funniest things about the My Immortal fanfic is the context to which it was born in the HP fandom at the time. In the early 2000's, HP fandom was a veritable arms race of who could write 'the best' most 'sophisticated' HP fanfic and the BNFs (Cassandra Clare, for example) were elevated to their pedestals because they were seen as the most talented fic writers. There were pissing contests, passive-aggressive comments about so-and-so being 'a mediocre fic writer' just shared between supposed 'friends', like one's popularity currency absolutely depended on whether or not the fandom deemed one's writing 'good enough'. Everyone was trying to be the goddamn idk Jane Austen of HP fandom pretty much. Even by 2006 (and msscribe's fall from grace, if you even care lol) this was still more or less the case- so the fact that this absolute unrepentantly bad HP fanfic came out during that time, the fact that Tara just kept posting chapters and doubling-down on people's criticisms and abject horror, the fact that this fanfic gave NO FUCKS about spelling, grammar, keeping characters intact, or even the original context of HP at all makes My Immortal's existence so much funnier than it already is on its lonesome. My Immortal was a slap in the fucking face to the entire established system and it reveled in being so.

Tellingly, I think, most people online today aren't going to know those 'popular', supremely 'well-written' fics off the top of their head, but even some IRL people I've talked with know and love My Immortal. Hell, Tom Felton has read it for his IG! Amy Lee either read or reacted to it a few of years back! It has it's own wikipedia, countless illustrations, works inspired by it and a cult following even today! I can't say the same for any of those fanfics that came before!

Whether My Immortal was a skilled troll or an unapologetic teenage girl that was going to write whatever the hell she wanted to, goddamn it, doesn't really matter because the effect was the same. Maybe remember that the next time you're agonizing over whether or not your writing is 'good enough'. Sometimes, it doesn't even need to be.

[marrr444]

Oh my poor little Jace, papa wasn't joking.

[dykedvonte]

The Ghoul: Ain’t ya tired of bein’ nice? Don’t ya wanna go ape shit?

Lucy, going ape shit mind you: No! I’m tired of everyone being so mean all the god dang time!

[tangledinink]

theory, (or stating the obvious?) the reason Leo’s shell is now a gardening project is his real one was horrifically damaged and needed a full makeover to not die. Hooray for Fay magic!

Bonus points if my wild more speculative guess of Leo having memory loss (not including JJ trivia) including the invasion and his family to some extent being on the money, lol.

full marks on the theory~ but alas, no bonus points or extra credit this time...

leo very much remembers the invasion and the events leading up to his displacement to the feywilds. and he is very much aware of the absence of his brothers.

[ ⚘ clover crown ⚘ ]

[too-many-rooks]

Generally I try to not be bothered by minor historical inaccuracies in KCD fic bc like, who cares! But one that has really stuck out a few times is the hard truth that; Henry of Skalitz has never and will never eat a potato.

It’s a tragedy, I know. This man would love potatoes. But he doesn’t even know they exist 😢

[jinmukangwrites]

I had a debate with my coworker about the Jedi not being crib robbers, regardless of the outcome of our argument, it has got me feeling ill about the parents who gave their children to the Jedi before or even during the Clone Wars. I'm watching Rebels and Kanan sounds so sad when he says he didn't know his parents. And then replaying Survivor, Cal has a conversation with Mosey about parents, and I remember that Cal is from Coruscant.

Like, imagine you're a parent. You probably live in the more poverty stricken levels of Coruscant. It's only a few years before the Clone Wars, but there's no way you could know that. All you know is that you have a baby in your arms, and there's Jedi in your home telling you that your baby is gifted, and that if you are willing, you can give your child up to a higher purpose. You'll probably never see your baby again, never see him grow, but... he'll grow up on the surface of Coruscant, in the Jedi Temple. He will not suffer poverty like you and your family, he will grow up to understand the mysteries of the Force and he'll become a peacekeeper of the galaxy and for whatever reason known only to you... it seems worth it.

You give your baby up.

And you wonder about him. Visiting the upper levels, you do the math in your head of how old he must be, and then you look out into the crowd made of trillions and wonder if you'll ever see a shock of red hair.

You never do, but that's fine. Your son is a Jedi, and maybe that's enough for you.

But then the Clone Wars come. And, not only do you see the Jedi join and lead their side of the war, but you begin to see the adult Jedi bring their young children with them on to the battle field.

Do you feel nothing? Do you feel anger? Acceptance? Do you think your baby is a hero? Do you go to the protests?

You watch the news, and perhaps you feel sick wondering if your baby will ever show up as a corpse.

But you never see him. And you're not sure if that's fine.

Years pass. The Jedi are branded traitors.

You hear about the masses of deaths, even the children are not spared from being branded as traitors and marked for execution from your new Emperor. Your baby is 12, or perhaps, was twelve. Perhaps 12 is the oldest he got, if he's lucky. That sticks with you.

You carry on.

Maybe you make a life for yourself within the Empire. Maybe you suppress the grief you must feel for the baby you gave to the Jedi all those years ago. Maybe you wallow in it. Maybe, on dark nights, surrounded by the never ending sounds of Coruscant, you think back to those simpler days, when there was no war, and you held your baby for the last time, and you think about what if. What if you held him tighter, and told the Jedi to leave. What if you worked harder to give him a better life yourself. What if you watched him grow, and he wasn't made a soldier, and he didn't die before he could become a teenager.

What if.

Years pass. You continue.

There's rumors of rebellion. You have your opinions on the Empire, on the rebels, some are deeply buried secrets, a bias you cannot escape, no one can know but that connection to the Jedi lingers.

Years pass. About a decade.

And you walk out one day, and you stop in your tracks, because you did not expect to see anything continue from your grief, the end of his story you told yourself.

A billboard shines in the darkness of the Coruscant lower levels, which isn't new, but this billboard stares at you.

A head full of red hair. Eyes that remind you of your partner. Scars scratch his features but his cheek bones remind you of your father.

Jedi terrorist.

About 22 years old.

Wanted by the Empire, and you don't know what to think but you know exactly what you're feeling.

And time moves on, and you're not in his life, but he's alive. Fighting against the Empire, while you continue to exist under the ruins of the Jedi Temple you gave him to, glancing up every once in a while, to see his face staring back in the light of wanted posters.

[artuurle]

Phantom pains

Bonus continuation that didnt fit the comics mood but i dont like leaving characters sad lol:

[itsmeezra]

in honor of Sonic 3 officially releasing I’d like everyone to give a special shoutout to my mom who broke two minor traffic laws to get to the theatre on time. this is what a real autism mom looks like

[skleech]

hopping on the trend of drawing miku in my country's traditional clothing, so here; Hatsune Miku in traditional Russian clothing (mainly from the Moscow region)

here's some of the photos i used as like refs for both the pose and the dress design:

[xxplastic-cubexx]

erik will genuinely jump at any chance he can to steal charles' last name and be so catty about it i know this for a fact WHAT is his deal

[Magneto (2011)]

[varpusvaras]

Hhhh I can't decide how I'm gonna do the relationship reveal in this au...it is going to happen a good while after Jason has come legally back alive and gotten married, but I'm stuck in how it gets revealed and to whom at first. If I'm being nice to Jason and Roy, it would be someone from the Arrows rather than from the Bats, but my need for drama is immense.