Streamlit event loop error

[JoobeeJung]

An issue spontaneously occurred locally when we were testing. It appears to be a bug in Streamlit, and I've attached this link for reference: RuntimeError: There is no current event loop in thread error with Streamlit and Asyncio #744

RuntimeError: There is no current event loop in thread 'ScriptRunner.scriptThread'.
Traceback:
File "C:\Users\mihir\anaconda3\lib\site-packages\streamlit\runtime\scriptrunner\script_runner.py", line 542, in _run_script
    exec(code, module.__dict__)
File "C:\Users\mihir\Mihir\UW Quarters\Winter 2023\Data 515\Project\TLDW\TLDW\streamlit_app.py", line 145, in <module>
    st.write(get_search_result(st.session_state.transcript, prompt))
File "C:\Users\mihir\Mihir\UW Quarters\Winter 2023\Data 515\Project\TLDW\TLDW\utils\chat_to_search.py", line 55, in get_search_result
    response = search_agent.run(st.session_state.messages, callbacks=[st_cb])
File "C:\Users\mihir\anaconda3\lib\site-packages\langchain_core\_api\deprecation.py", line 145, in warning_emitting_wrapper
    return wrapped(*args, **kwargs)
File "C:\Users\mihir\anaconda3\lib\site-packages\langchain\chains\base.py", line 545, in run
    return self(args[0], callbacks=callbacks, tags=tags, metadata=metadata)[
File "C:\Users\mihir\anaconda3\lib\site-packages\langchain_core\_api\deprecation.py", line 145, in warning_emitting_wrapper
    return wrapped(*args, **kwargs)
File "C:\Users\mihir\anaconda3\lib\site-packages\langchain\chains\base.py", line 378, in __call__
    return self.invoke(
File "C:\Users\mihir\anaconda3\lib\site-packages\langchain\chains\base.py", line 163, in invoke
    raise e
File "C:\Users\mihir\anaconda3\lib\site-packages\langchain\chains\base.py", line 153, in invoke
    self._call(inputs, run_manager=run_manager)
File "C:\Users\mihir\anaconda3\lib\site-packages\langchain\agents\agent.py", line 1391, in _call
    next_step_output = self._take_next_step(
File "C:\Users\mihir\anaconda3\lib\site-packages\langchain\agents\agent.py", line 1097, in _take_next_step
    [
File "C:\Users\mihir\anaconda3\lib\site-packages\langchain\agents\agent.py", line 1097, in <listcomp>
    [
File "C:\Users\mihir\anaconda3\lib\site-packages\langchain\agents\agent.py", line 1182, in _iter_next_step
    yield self._perform_agent_action(
File "C:\Users\mihir\anaconda3\lib\site-packages\langchain\agents\agent.py", line 1204, in _perform_agent_action
    observation = tool.run(
File "C:\Users\mihir\anaconda3\lib\site-packages\langchain_core\tools.py", line 419, in run
    raise e
File "C:\Users\mihir\anaconda3\lib\site-packages\langchain_core\tools.py", line 376, in run
    self._run(*tool_args, run_manager=run_manager, **tool_kwargs)
File "C:\Users\mihir\anaconda3\lib\site-packages\langchain_community\tools\ddg_search\tool.py", line 39, in _run
    return self.api_wrapper.run(query)
File "C:\Users\mihir\anaconda3\lib\site-packages\langchain_community\utilities\duckduckgo_search.py", line 81, in run
    results = self._ddgs_text(query)
File "C:\Users\mihir\anaconda3\lib\site-packages\langchain_community\utilities\duckduckgo_search.py", line 47, in _ddgs_text
    with DDGS() as ddgs:
File "C:\Users\mihir\anaconda3\lib\site-packages\duckduckgo_search\duckduckgo_search.py", line 15, in __init__
    super().__init__(headers, proxies, timeout)
File "C:\Users\mihir\anaconda3\lib\site-packages\duckduckgo_search\duckduckgo_search_async.py", line 48, in __init__
    self._asession = requests.AsyncSession(
File "C:\Users\mihir\anaconda3\lib\site-packages\curl_cffi\requests\session.py", line 915, in __init__
    self.init_pool()
File "C:\Users\mihir\anaconda3\lib\site-packages\curl_cffi\requests\session.py", line 930, in init_pool
    self.pool = asyncio.LifoQueue(self.max_clients)
File "C:\Users\mihir\anaconda3\lib\asyncio\queues.py", line 36, in __init__
    self._loop = events.get_event_loop()
File "C:\Users\mihir\anaconda3\lib\asyncio\events.py", line 642, in get_event_loop
    raise RuntimeError('There is no current event loop in thread %r.'