from langchain_openai import OpenAIfrom langchain_core.prompts import PromptTemplatefrom langchain_core.output_parsers import StrOutputParserimport osos.environ['OPENAI_API_BASE'] = "https://shale.live/v1"os.environ['OPENAI_API_KEY'] = "ENTER YOUR API KEY"llm = OpenAI()template = """Question: {question}# Answer: Let's think step by step."""prompt = PromptTemplate.from_template(template)llm_chain = prompt | llm | StrOutputParser()question = "What NFL team won the Super Bowl in the year Justin Beiber was born?"llm_chain.invoke(question)