import openai import os from datetime import datetime start_time = datetime.now() openai.api_key = os.getenv("OPENAI_API_KEY") model_name = "gpt-4" question = """ Q: What is the best way to learn ChatGPT using Python? """ response = openai.ChatCompletion.create( model=model_name, messages=[ {"role": "user", "content": question}, ], ) end_time = datetime.now() print(response.choices[0]["message"]["