chains/simple_chain.py

from langchain.chains.llm import LLMChain
from langchain.prompts.chat import (
    ChatPromptTemplate,
    SystemMessagePromptTemplate,
    HumanMessagePromptTemplate)
from prompts.simple_chain import SYSTEM_PROMPT_TEMPLATE, HUMAN_PROMPT_TEMPLATE
from config import OPENAI_API_TYPE, OPENAI_API_VERSION, OPENAI_API_KEY, OPENAI_API_BASE, DEPLOYMENT_ID
from chains.azure_openai import CustomAzureOpenAI


class SimpleChain(LLMChain):
    llm = CustomAzureOpenAI(deployment_name=DEPLOYMENT_ID,
                    openai_api_type=OPENAI_API_TYPE,
                    openai_api_base=OPENAI_API_BASE,
                    openai_api_version=OPENAI_API_VERSION,
                    openai_api_key=OPENAI_API_KEY,
                    temperature=0.0)
    prompt = ChatPromptTemplate.from_messages(
        [
            SystemMessagePromptTemplate.from_template(SYSTEM_PROMPT_TEMPLATE),
            HumanMessagePromptTemplate.from_template(HUMAN_PROMPT_TEMPLATE)
        ])