key中用的是serpapi，但运行researcher时报错信息显示用的是ddg是什么问题导致的？

[1729256800]

search:
api_type: 'serpapi' # serpapi/google/serper/ddg
api_key: ''

cse_id: 'YOUR_CSE_ID' # only for google

params:
engine: google # google/bing/yahoo/baidu/yandex, check https://serpapi.com/bing-search-api for more details
google_domain: 'google.com'
gl: us
hl: en

2025-02-18 15:28:19.229 | INFO | metagpt.const:get_metagpt_package_root:21 - Package root set to D:\Code\python\pycharm\MetaGPT
2025-02-18 15:28:26.195 | INFO | main:_act:44 - David(Researcher): to do CollectLinks(CollectLinks)
["2025 Spring Fashion Trends", "Women's Fashion"]
2025-02-18 15:28:33.048 | INFO | metagpt.utils.cost_manager:update_cost:57 - Total running cost: $0.001 | Max budget: $10.000 | Current cost: $0.001, prompt_tokens: 74, completion_tokens: 16
2025-02-18 15:28:43.059 | ERROR | metagpt.tools.search_engine:run:142 - fail to search 2025 Spring Fashion Trends for _get_url() https://duckduckgo.com Timeout: Failed to perform, curl: (28) Connection timed out after 10006 milliseconds. See https://curl.se/libcurl/c/libcurl-errors.html first for more details.

[seehi]

默认值是ddg，看着像配置没正确解析，可以把config的值打印出来看下

[1729256800]

确实没正常解析，不知道什么原因，只能手动把默认值改了