ReACT agent save and resume

[HasnainKhanNiazi]

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Example Code

agent = create_react_agent(model, tools, prompt)
agent_executor = AgentExecutor(agent=agent, tools=tools, callbacks=callbacks ,handle_parsing_errors=True, verbose=False)

Description

I am working on a single ReACT agent which is a chatbot with three different tools and I want to save the agent state with all the user_questions, agent_answers with scrathpad and reasoning steps so that I can resume the chat later. I found save method in the agents but I am getting this error:

NotImplementedError: Agent runnable=RunnableAssign(mapper={ agent_scratchpad: RunnableLambda(lambda x: format_log_to_str(x['intermediate_steps'])) }) | PromptTemplate(input_variables=['agent_scratchpad', 'user_query'], input_types={}, partial_variables={'tools': 'ask_user(message: str) - This tool can be used to ask a question to a user', 'tool_names': 'ask_user'}, template='\nYou are bot ......) | RunnableBinding(bound=ChatAnthropic(callbacks=[<__main__.LoggingHandler object at 0x168333250>], model='claude-3-5-sonnet-20240620', temperature=0.6, anthropic_api_url='https://api.anthropic.com', anthropic_api_key=SecretStr('**********'), model_kwargs={}), kwargs={'stop': ['\nObservation']}, config={}, config_factories=[]) | ReActSingleInputOutputParser() input_keys_arg=[] return_keys_arg=[] stream_runnable=True does not support saving

Is there any way to save the agent as a file to resume it later?

System Info

platform: macOS
python version: 3.10.14

langchain==0.3.0
langchain-anthropic==0.2.1
langchain-community==0.3.0
langchain-core==0.3.0
langchain-experimental==0.3.0
langchain-openai==0.2.1
langchain-text-splitters==0.3.0
langchainhub==0.1.20