I’m new to langchain & I’m using langchain-0.2.12 langchain-core-0.2.28 in my spyder 4.1.4.

While I’m writing from langchain.llms import I’m not seeing OpenAI, instead I’m seeing openai. So my import statement is from langchain.llms import openai. But while I’m running llm=openai(openai_api_key=api_key), I’m getting error message TypeError: 'module' object is not callable. Can you please help me to resolve this issue?