RemoveMessage全部状态时出错

[czhcc]

执行
graph.update_state(my_read_config,{"messages": [RemoveMessage(id=m.id) for m in messages]})
会产生
File "D:\tools\miniconda3\envs\langchain\Lib\site-packages\langgraph\pregel_init_.py", line 2007, in update_state
return self.bulk_update_state(config, [[StateUpdate(values, as_node)]])
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "D:\tools\miniconda3\envs\langchain\Lib\site-packages\langgraph\pregel_init_.py", line 1583, in bulk_update_state
current_config = perform_superstep(current_config, superstep)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "D:\tools\miniconda3\envs\langchain\Lib\site-packages\langgraph\pregel_init_.py", line 1524, in perform_superstep
run.invoke(
File "D:\myprog\py.projects\aigc.github\langchain\libs\core\langchain_core\runnables\base.py", line 3025, in invoke
input = context.run(step.invoke, input, config)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "D:\tools\miniconda3\envs\langchain\Lib\site-packages\langgraph\utils\runnable.py", line 371, in invoke
ret = context.run(self.func, *args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "D:\tools\miniconda3\envs\langchain\Lib\site-packages\langgraph\graph\branch.py", line 167, in _route
result = self.path.invoke(value, config)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "D:\tools\miniconda3\envs\langchain\Lib\site-packages\langgraph\utils\runnable.py", line 363, in invoke
ret = context.run(self.func, *args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "D:\tools\miniconda3\envs\langchain\Lib\site-packages\langgraph\prebuilt\chat_agent_executor.py", line 775, in should_continue
last_message = messages[-1]
~~~~~~~~^^^^
IndexError: list index out of range