from langchain_core.messages import HumanMessage, SystemMessage
from langchain_openai import ChatOpenAI


def main():
    llm = ChatOpenAI(
        model="gpt-3.5-turbo",
        temperature=0.1,
        max_tokens=100,
        top_p=0.9,
        frequency_penalty=0.5,
        presence_penalty=0.5,
        stop_sequences=["\n", "Human:", "AI:"],
        seed=100,
    )

    messages = [
        SystemMessage(content="You are a helpful assistant!"),
        HumanMessage(content="What is the capital of France?"),
    ]

    result = llm.invoke(messages).content
    print("LLM output:\n", result)


if __name__ == "__main__":
    main()