ValueError: Proxy dictionary is missing required fields.

[manu2022]

from scrapegraphai.utils.proxy_rotation import search_proxy_servers
search_proxy_servers()

graph_config = {
"llm": {
"model": "gpt-4o",
},
"verbose": True,
"max_results": 1,
# "search_engine": "bing",
"headless": False,
"loader_kwargs": {
"proxy": {
"server": "here i put the server",
}
}
}

search_graph = SearchGraph(
prompt=PROMPTS.get("propmt_vvs")["prompt"].format(**data),
config=graph_config,
schema=model,
)
ValueError: Proxy dictionary is missing required fields.

version 1.31.

The thing is that I cannot manually specify the proxy. it says I am missing fields, but I have all the ones in the documentation