## Get the search engine token in the environment variable
## 在环境变量中获取搜索引擎令牌
## Ask for Bing Search API Token. You can visit https://www.microsoft.com/en-us/bing/apis/bing-web-search-api to get the token.
## 申请 Bing 搜索API Token。你可以访问 https://www.microsoft.com/en-us/bing/apis/bing-web-search-api 获取 token。
search_engine: bing
search_engine_token: ENV