测试openai的key能不能用

import os
# 设置 OPENAI_API_KEY 环境变量
os.environ["OPENAI_API_KEY"] = 'sk-eHuKMAGkrwn2irJq2sXIGQk7TzbL18imnj6pEgUVOHnDYKF'
# 设置 OPENAI_BASE_URL 环境变量
os.environ["OPENAI_BASE_URL"] = "https://xiaoai.plus/v1"
import os
from openai import OpenAI

client = OpenAI(
    # 下面两个参数的默认值来自环境变量，可以不加
    api_key=os.environ.get("OPENAI_API_KEY"),
    base_url=os.environ.get("OPENAI_BASE_URL"),
)

completion = client.chat.completions.create(
  model="gpt-4",
  messages=[
    {"role": "system", "content": "You are a helpful assistant."},
    {"role": "user", "content": "Hello!"}
  ]
)

print(completion)  # 响应
print(completion.choices[0].message)  # 回答