按照步骤安装后，提示search类有问题？

[hanjingsu]

具体错误如下，请帮诊断下： File "cli_demo.py", line 1, in from model import load_model, citation_correction File "/data/home/justinsu/WebGLM/model/init.py", line 1, in from .modeling_webglm import WebGLM, load_model File "/data/home/justinsu/WebGLM/model/modeling_webglm.py", line 1, in from .retriever import ReferenceRetiever File "/data/home/justinsu/WebGLM/model/retriever/init.py", line 1, in from .searching import create_searcher File "/data/home/justinsu/WebGLM/model/retriever/searching/init.py", line 1, in from .serpapi import Searcher as SerpAPISearcher File "/data/home/justinsu/WebGLM/model/retriever/searching/serpapi.py", line 3, in from .searcher import * File "/data/home/justinsu/WebGLM/model/retriever/searching/searcher.py", line 19, in class SearcherInterface: File "/data/home/justinsu/WebGLM/model/retriever/searching/searcher.py", line 20, in SearcherInterface def search(self, query) -> list[SearchResult]: TypeError: 'type' object is not subscriptable