diff --git a/app/controller/add_langgraph_chat_route.py b/app/controller/add_langgraph_chat_route.py index b357c73..378a1bc 100644 --- a/app/controller/add_langgraph_chat_route.py +++ b/app/controller/add_langgraph_chat_route.py @@ -1,24 +1,52 @@ import datetime import json +import time from typing import Union, Annotated from fastapi import FastAPI -from langchain_core.messages import HumanMessage +from langchain_core.messages import HumanMessage, AIMessage, ToolMessage from langchain_core.tools import tool from langgraph.graph.state import CompiledStateGraph from langgraph.prebuilt import create_react_agent from langgraph.types import interrupt, Command from pydantic import BaseModel, Field +from starlette.responses import StreamingResponse from app.utils.llm_utils import create_llm from app.utils.postgres_checkpointer import PostgresCheckpointerManager -@tool(name_or_callable="tool_get_datetime", description="一个用于获取当前时间的工具，没有参数") +@tool(name_or_callable="获取时间工具", description="一个用于获取当前时间的工具，没有参数") def tool_get_datetime(): return datetime.datetime.now().strftime("%Y-%m-%d %H:%M:%S") +@tool( + name_or_callable="乘法工具", + description="一个乘法工具，用于计算两个数字相乘" +) +def multiple_tool( + number1: Annotated[float, "第一个要相乘的数字"], + number2: Annotated[float, "第二个要相乘的数字"], +) -> float: + print("\n invoke multiple_tool", number1, number2, '\n') + + return float(number1) * float(number2) + + +@tool( + name_or_callable="加法工具", + description="一个加法工具，用于计算两个数字相加" +) +def add_tool( + number1: Annotated[float, "第一个要相加的数字"], + number2: Annotated[float, "第二个要相加的数字"], +) -> float: + print("\n invoke add_tool", number1, number2, '\n') + + return float(number1) + float(number2) + + @tool(name_or_callable="tool_book_hotel", description="一个用于预定酒店的工具") def tool_book_hotel( hotel_name: Annotated[str, '酒店名称'], @@ -92,7 +120,12 @@ class ChatAgent: if not ChatAgent.agent: ChatAgent.agent = create_react_agent( model=create_llm(), - tools=[tool_book_hotel, tool_get_datetime], + tools=[ + tool_book_hotel, + tool_get_datetime, + add_tool, + multiple_tool, + ], checkpointer=await PostgresCheckpointerManager.get_instance(), prompt=""" 你是一名擅长使用工具的智能助手，你需要根据用户问题来进行回答，请使用中文进行回答。 @@ -135,6 +168,68 @@ def add_langgraph_chat_route(app: FastAPI): async def langgraph_chat(chat_param: ChatParam): return await ChatAgent.chat(chat_param.human_message, chat_param.thread_id) + @app.post("/langgraph/stream") + async def langgraph_stream(body: dict): + print(":::::::::::::::::::::::::langgraph_stream:::::::::::::::::::::") + print(body) + + stream_input = body.get('input') + stream_config = body.get('config') + + print("stream_input", stream_input) + print("stream_config", stream_config) + + async def generator_function(): + + graph = await ChatAgent.get_agent() + # chat_state = await ChatAgent.get_chat_state(thread_id) + # chat_history_list = chat_state.get('messages') + async for chunk in graph.astream( + stream_input, + config=stream_config, + stream_mode=['messages', 'updates'] + ): + print("chunk-------->>>>>>>>>>", chunk) + + result_template = { + "choices": [{"delta": {}, "index": 0}], + "created": time.time(), + "id": "", + "usage": None + } + + emit_chunk = {"stream_type": chunk[0], } + + if emit_chunk['stream_type'] == "messages": + chunk_message = chunk[1][0] + else: + for k, v in chunk[1].items(): + chunk_message = v.get('messages')[0] + + emit_chunk = { + **emit_chunk, + "msg_id": chunk_message.id, + "msg_type": chunk_message.type, + "msg_content": chunk_message.content, + } + + if isinstance(chunk_message, AIMessage): + if chunk_message.tool_calls: + emit_chunk["tool_calls"] = chunk_message.tool_calls + elif isinstance(chunk_message, ToolMessage): + emit_chunk["tool_name"] = chunk_message.name + + result_template["choices"][0]["delta"]['content'] = emit_chunk + result_template["choices"][0]["delta"]['role'] = 'assistant' + + result_template['id'] = chunk_message.id + result_template['created'] = int(time.time()) + + yield f"data: {json.dumps(result_template, ensure_ascii=False)}\n\n" + # yield "data: [DONE]\n\n" + + return StreamingResponse(generator_function(), media_type="text/event-stream") + @app.post("/langgraph/chat_resume/{thread_id}") async def langgraph_chat(body: dict, thread_id: str): graph = await ChatAgent.get_agent() diff --git a/app/controller/add_langgraph_chat_route.txt b/app/controller/add_langgraph_chat_route.txt new file mode 100644 index 0000000..317eb9e --- /dev/null +++ b/app/controller/add_langgraph_chat_route.txt @@ -0,0 +1,39 @@ +// 发起工具调用（token） +chunk-------->>>>>>>>>> ('messages', (AIMessageChunk(content='', additional_kwargs={}, response_metadata={}, id='run--98c8de72-62bb-4660-9f15-e2e6e0567aea'), {'thread_id': '1', 'recursionLimit': 25, 'langgraph_step': 33, 'langgraph_node': 'agent', 'langgraph_triggers': ('branch:to:agent',), 'langgraph_path': ('__pregel_pull', 'agent'), 'langgraph_checkpoint_ns': 'agent:74c58e72-6cca-f60a-ebff-1c6137209e06', 'checkpoint_ns': 'agent:74c58e72-6cca-f60a-ebff-1c6137209e06', 'ls_provider': 'openai', 'ls_model_name': 'doubao-1-5-lite-32k-250115', 'ls_model_type': 'chat', 'ls_temperature': 0.5})) +chunk-------->>>>>>>>>> ('messages', (AIMessageChunk(content='', additional_kwargs={'tool_calls': [{'index': 0, 'id': 'call_p0ms06ksfaf8xkg6oxcjd45c', 'function': {'arguments': '', 'name': 'tool_get_datetime'}, 'type': 'function'}]}, response_metadata={}, id='run--98c8de72-62bb-4660-9f15-e2e6e0567aea', tool_calls=[{'name': 'tool_get_datetime', 'args': {}, 'id': 'call_p0ms06ksfaf8xkg6oxcjd45c', 'type': 'tool_call'}], tool_call_chunks=[{'name': 'tool_get_datetime', 'args': '', 'id': 'call_p0ms06ksfaf8xkg6oxcjd45c', 'index': 0, 'type': 'tool_call_chunk'}]), {'thread_id': '1', 'recursionLimit': 25, 'langgraph_step': 33, 'langgraph_node': 'agent', 'langgraph_triggers': ('branch:to:agent',), 'langgraph_path': ('__pregel_pull', 'agent'), 'langgraph_checkpoint_ns': 'agent:74c58e72-6cca-f60a-ebff-1c6137209e06', 'checkpoint_ns': 'agent:74c58e72-6cca-f60a-ebff-1c6137209e06', 'ls_provider': 'openai', 'ls_model_name': 'doubao-1-5-lite-32k-250115', 'ls_model_type': 'chat', 'ls_temperature': 0.5})) +chunk-------->>>>>>>>>> ('messages', (AIMessageChunk(content='', additional_kwargs={'tool_calls': [{'index': 0, 'id': None, 'function': {'arguments': ' {', 'name': None}, 'type': None}]}, response_metadata={}, id='run--98c8de72-62bb-4660-9f15-e2e6e0567aea', tool_calls=[{'name': '', 'args': {}, 'id': None, 'type': 'tool_call'}], tool_call_chunks=[{'name': None, 'args': ' {', 'id': None, 'index': 0, 'type': 'tool_call_chunk'}]), {'thread_id': '1', 'recursionLimit': 25, 'langgraph_step': 33, 'langgraph_node': 'agent', 'langgraph_triggers': ('branch:to:agent',), 'langgraph_path': ('__pregel_pull', 'agent'), 'langgraph_checkpoint_ns': 'agent:74c58e72-6cca-f60a-ebff-1c6137209e06', 'checkpoint_ns': 'agent:74c58e72-6cca-f60a-ebff-1c6137209e06', 'ls_provider': 'openai', 'ls_model_name': 'doubao-1-5-lite-32k-250115', 'ls_model_type': 'chat', 'ls_temperature': 0.5})) +chunk-------->>>>>>>>>> ('messages', (AIMessageChunk(content='', additional_kwargs={'tool_calls': [{'index': 0, 'id': None, 'function': {'arguments': '}', 'name': None}, 'type': None}]}, response_metadata={}, id='run--98c8de72-62bb-4660-9f15-e2e6e0567aea', invalid_tool_calls=[{'name': None, 'args': '}', 'id': None, 'error': None, 'type': 'invalid_tool_call'}], tool_call_chunks=[{'name': None, 'args': '}', 'id': None, 'index': 0, 'type': 'tool_call_chunk'}]), {'thread_id': '1', 'recursionLimit': 25, 'langgraph_step': 33, 'langgraph_node': 'agent', 'langgraph_triggers': ('branch:to:agent',), 'langgraph_path': ('__pregel_pull', 'agent'), 'langgraph_checkpoint_ns': 'agent:74c58e72-6cca-f60a-ebff-1c6137209e06', 'checkpoint_ns': 'agent:74c58e72-6cca-f60a-ebff-1c6137209e06', 'ls_provider': 'openai', 'ls_model_name': 'doubao-1-5-lite-32k-250115', 'ls_model_type': 'chat', 'ls_temperature': 0.5})) +chunk-------->>>>>>>>>> ('messages', (AIMessageChunk(content='', additional_kwargs={}, response_metadata={'finish_reason': 'tool_calls', 'model_name': 'doubao-1-5-lite-32k-250115', 'service_tier': 'default'}, id='run--98c8de72-62bb-4660-9f15-e2e6e0567aea'), {'thread_id': '1', 'recursionLimit': 25, 'langgraph_step': 33, 'langgraph_node': 'agent', 'langgraph_triggers': ('branch:to:agent',), 'langgraph_path': ('__pregel_pull', 'agent'), 'langgraph_checkpoint_ns': 'agent:74c58e72-6cca-f60a-ebff-1c6137209e06', 'checkpoint_ns': 'agent:74c58e72-6cca-f60a-ebff-1c6137209e06', 'ls_provider': 'openai', 'ls_model_name': 'doubao-1-5-lite-32k-250115', 'ls_model_type': 'chat', 'ls_temperature': 0.5})) +// 发起工具调用 +chunk-------->>>>>>>>>> ('updates', {'agent': {'messages': [AIMessage(content='', additional_kwargs={'tool_calls': [{'index': 0, 'id': 'call_p0ms06ksfaf8xkg6oxcjd45c', 'function': {'arguments': ' {}', 'name': 'tool_get_datetime'}, 'type': 'function'}]}, response_metadata={'finish_reason': 'tool_calls', 'model_name': 'doubao-1-5-lite-32k-250115', 'service_tier': 'default'}, id='run--98c8de72-62bb-4660-9f15-e2e6e0567aea', tool_calls=[{'name': 'tool_get_datetime', 'args': {}, 'id': 'call_p0ms06ksfaf8xkg6oxcjd45c', 'type': 'tool_call'}])]}}) +// 工具调用（token） +chunk-------->>>>>>>>>> ('messages', (ToolMessage(content='2025-09-02 22:00:33', name='tool_get_datetime', id='458be9ef-c70a-470c-9080-600e4a86be0f', tool_call_id='call_p0ms06ksfaf8xkg6oxcjd45c'), {'thread_id': '1', 'recursionLimit': 25, 'langgraph_step': 34, 'langgraph_node': 'tools', 'langgraph_triggers': ('__pregel_push',), 'langgraph_path': ('__pregel_push', 0, False), 'langgraph_checkpoint_ns': 'tools:b7455365-0f5a-7c9b-e3a4-e1173901352f'})) +// 工具调用 +chunk-------->>>>>>>>>> ('updates', {'tools': {'messages': [ToolMessage(content='2025-09-02 22:00:33', name='tool_get_datetime', id='458be9ef-c70a-470c-9080-600e4a86be0f', tool_call_id='call_p0ms06ksfaf8xkg6oxcjd45c')]}}) +// 回复结果（token） +chunk-------->>>>>>>>>> ('messages', (AIMessageChunk(content='当前', additional_kwargs={}, response_metadata={}, id='run--64e055a2-fd8b-4adc-bf35-bf3fe475025a'), {'thread_id': '1', 'recursionLimit': 25, 'langgraph_step': 35, 'langgraph_node': 'agent', 'langgraph_triggers': ('branch:to:agent',), 'langgraph_path': ('__pregel_pull', 'agent'), 'langgraph_checkpoint_ns': 'agent:9bef86ff-4cd5-fcb7-1571-fd67de2c70f9', 'checkpoint_ns': 'agent:9bef86ff-4cd5-fcb7-1571-fd67de2c70f9', 'ls_provider': 'openai', 'ls_model_name': 'doubao-1-5-lite-32k-250115', 'ls_model_type': 'chat', 'ls_temperature': 0.5})) +chunk-------->>>>>>>>>> ('messages', (AIMessageChunk(content='时间', additional_kwargs={}, response_metadata={}, id='run--64e055a2-fd8b-4adc-bf35-bf3fe475025a'), {'thread_id': '1', 'recursionLimit': 25, 'langgraph_step': 35, 'langgraph_node': 'agent', 'langgraph_triggers': ('branch:to:agent',), 'langgraph_path': ('__pregel_pull', 'agent'), 'langgraph_checkpoint_ns': 'agent:9bef86ff-4cd5-fcb7-1571-fd67de2c70f9', 'checkpoint_ns': 'agent:9bef86ff-4cd5-fcb7-1571-fd67de2c70f9', 'ls_provider': 'openai', 'ls_model_name': 'doubao-1-5-lite-32k-250115', 'ls_model_type': 'chat', 'ls_temperature': 0.5})) +chunk-------->>>>>>>>>> ('messages', (AIMessageChunk(content='是', additional_kwargs={}, response_metadata={}, id='run--64e055a2-fd8b-4adc-bf35-bf3fe475025a'), {'thread_id': '1', 'recursionLimit': 25, 'langgraph_step': 35, 'langgraph_node': 'agent', 'langgraph_triggers': ('branch:to:agent',), 'langgraph_path': ('__pregel_pull', 'agent'), 'langgraph_checkpoint_ns': 'agent:9bef86ff-4cd5-fcb7-1571-fd67de2c70f9', 'checkpoint_ns': 'agent:9bef86ff-4cd5-fcb7-1571-fd67de2c70f9', 'ls_provider': 'openai', 'ls_model_name': 'doubao-1-5-lite-32k-250115', 'ls_model_type': 'chat', 'ls_temperature': 0.5})) +chunk-------->>>>>>>>>> ('messages', (AIMessageChunk(content='2', additional_kwargs={}, response_metadata={}, id='run--64e055a2-fd8b-4adc-bf35-bf3fe475025a'), {'thread_id': '1', 'recursionLimit': 25, 'langgraph_step': 35, 'langgraph_node': 'agent', 'langgraph_triggers': ('branch:to:agent',), 'langgraph_path': ('__pregel_pull', 'agent'), 'langgraph_checkpoint_ns': 'agent:9bef86ff-4cd5-fcb7-1571-fd67de2c70f9', 'checkpoint_ns': 'agent:9bef86ff-4cd5-fcb7-1571-fd67de2c70f9', 'ls_provider': 'openai', 'ls_model_name': 'doubao-1-5-lite-32k-250115', 'ls_model_type': 'chat', 'ls_temperature': 0.5})) +chunk-------->>>>>>>>>> ('messages', (AIMessageChunk(content='0', additional_kwargs={}, response_metadata={}, id='run--64e055a2-fd8b-4adc-bf35-bf3fe475025a'), {'thread_id': '1', 'recursionLimit': 25, 'langgraph_step': 35, 'langgraph_node': 'agent', 'langgraph_triggers': ('branch:to:agent',), 'langgraph_path': ('__pregel_pull', 'agent'), 'langgraph_checkpoint_ns': 'agent:9bef86ff-4cd5-fcb7-1571-fd67de2c70f9', 'checkpoint_ns': 'agent:9bef86ff-4cd5-fcb7-1571-fd67de2c70f9', 'ls_provider': 'openai', 'ls_model_name': 'doubao-1-5-lite-32k-250115', 'ls_model_type': 'chat', 'ls_temperature': 0.5})) +chunk-------->>>>>>>>>> ('messages', (AIMessageChunk(content='2', additional_kwargs={}, response_metadata={}, id='run--64e055a2-fd8b-4adc-bf35-bf3fe475025a'), {'thread_id': '1', 'recursionLimit': 25, 'langgraph_step': 35, 'langgraph_node': 'agent', 'langgraph_triggers': ('branch:to:agent',), 'langgraph_path': ('__pregel_pull', 'agent'), 'langgraph_checkpoint_ns': 'agent:9bef86ff-4cd5-fcb7-1571-fd67de2c70f9', 'checkpoint_ns': 'agent:9bef86ff-4cd5-fcb7-1571-fd67de2c70f9', 'ls_provider': 'openai', 'ls_model_name': 'doubao-1-5-lite-32k-250115', 'ls_model_type': 'chat', 'ls_temperature': 0.5})) +chunk-------->>>>>>>>>> ('messages', (AIMessageChunk(content='5', additional_kwargs={}, response_metadata={}, id='run--64e055a2-fd8b-4adc-bf35-bf3fe475025a'), {'thread_id': '1', 'recursionLimit': 25, 'langgraph_step': 35, 'langgraph_node': 'agent', 'langgraph_triggers': ('branch:to:agent',), 'langgraph_path': ('__pregel_pull', 'agent'), 'langgraph_checkpoint_ns': 'agent:9bef86ff-4cd5-fcb7-1571-fd67de2c70f9', 'checkpoint_ns': 'agent:9bef86ff-4cd5-fcb7-1571-fd67de2c70f9', 'ls_provider': 'openai', 'ls_model_name': 'doubao-1-5-lite-32k-250115', 'ls_model_type': 'chat', 'ls_temperature': 0.5})) +chunk-------->>>>>>>>>> ('messages', (AIMessageChunk(content='年', additional_kwargs={}, response_metadata={}, id='run--64e055a2-fd8b-4adc-bf35-bf3fe475025a'), {'thread_id': '1', 'recursionLimit': 25, 'langgraph_step': 35, 'langgraph_node': 'agent', 'langgraph_triggers': ('branch:to:agent',), 'langgraph_path': ('__pregel_pull', 'agent'), 'langgraph_checkpoint_ns': 'agent:9bef86ff-4cd5-fcb7-1571-fd67de2c70f9', 'checkpoint_ns': 'agent:9bef86ff-4cd5-fcb7-1571-fd67de2c70f9', 'ls_provider': 'openai', 'ls_model_name': 'doubao-1-5-lite-32k-250115', 'ls_model_type': 'chat', 'ls_temperature': 0.5})) +chunk-------->>>>>>>>>> ('messages', (AIMessageChunk(content='9', additional_kwargs={}, response_metadata={}, id='run--64e055a2-fd8b-4adc-bf35-bf3fe475025a'), {'thread_id': '1', 'recursionLimit': 25, 'langgraph_step': 35, 'langgraph_node': 'agent', 'langgraph_triggers': ('branch:to:agent',), 'langgraph_path': ('__pregel_pull', 'agent'), 'langgraph_checkpoint_ns': 'agent:9bef86ff-4cd5-fcb7-1571-fd67de2c70f9', 'checkpoint_ns': 'agent:9bef86ff-4cd5-fcb7-1571-fd67de2c70f9', 'ls_provider': 'openai', 'ls_model_name': 'doubao-1-5-lite-32k-250115', 'ls_model_type': 'chat', 'ls_temperature': 0.5})) +chunk-------->>>>>>>>>> ('messages', (AIMessageChunk(content='月', additional_kwargs={}, response_metadata={}, id='run--64e055a2-fd8b-4adc-bf35-bf3fe475025a'), {'thread_id': '1', 'recursionLimit': 25, 'langgraph_step': 35, 'langgraph_node': 'agent', 'langgraph_triggers': ('branch:to:agent',), 'langgraph_path': ('__pregel_pull', 'agent'), 'langgraph_checkpoint_ns': 'agent:9bef86ff-4cd5-fcb7-1571-fd67de2c70f9', 'checkpoint_ns': 'agent:9bef86ff-4cd5-fcb7-1571-fd67de2c70f9', 'ls_provider': 'openai', 'ls_model_name': 'doubao-1-5-lite-32k-250115', 'ls_model_type': 'chat', 'ls_temperature': 0.5})) +chunk-------->>>>>>>>>> ('messages', (AIMessageChunk(content='2', additional_kwargs={}, response_metadata={}, id='run--64e055a2-fd8b-4adc-bf35-bf3fe475025a'), {'thread_id': '1', 'recursionLimit': 25, 'langgraph_step': 35, 'langgraph_node': 'agent', 'langgraph_triggers': ('branch:to:agent',), 'langgraph_path': ('__pregel_pull', 'agent'), 'langgraph_checkpoint_ns': 'agent:9bef86ff-4cd5-fcb7-1571-fd67de2c70f9', 'checkpoint_ns': 'agent:9bef86ff-4cd5-fcb7-1571-fd67de2c70f9', 'ls_provider': 'openai', 'ls_model_name': 'doubao-1-5-lite-32k-250115', 'ls_model_type': 'chat', 'ls_temperature': 0.5})) +chunk-------->>>>>>>>>> ('messages', (AIMessageChunk(content='日', additional_kwargs={}, response_metadata={}, id='run--64e055a2-fd8b-4adc-bf35-bf3fe475025a'), {'thread_id': '1', 'recursionLimit': 25, 'langgraph_step': 35, 'langgraph_node': 'agent', 'langgraph_triggers': ('branch:to:agent',), 'langgraph_path': ('__pregel_pull', 'agent'), 'langgraph_checkpoint_ns': 'agent:9bef86ff-4cd5-fcb7-1571-fd67de2c70f9', 'checkpoint_ns': 'agent:9bef86ff-4cd5-fcb7-1571-fd67de2c70f9', 'ls_provider': 'openai', 'ls_model_name': 'doubao-1-5-lite-32k-250115', 'ls_model_type': 'chat', 'ls_temperature': 0.5})) +chunk-------->>>>>>>>>> ('messages', (AIMessageChunk(content='2', additional_kwargs={}, response_metadata={}, id='run--64e055a2-fd8b-4adc-bf35-bf3fe475025a'), {'thread_id': '1', 'recursionLimit': 25, 'langgraph_step': 35, 'langgraph_node': 'agent', 'langgraph_triggers': ('branch:to:agent',), 'langgraph_path': ('__pregel_pull', 'agent'), 'langgraph_checkpoint_ns': 'agent:9bef86ff-4cd5-fcb7-1571-fd67de2c70f9', 'checkpoint_ns': 'agent:9bef86ff-4cd5-fcb7-1571-fd67de2c70f9', 'ls_provider': 'openai', 'ls_model_name': 'doubao-1-5-lite-32k-250115', 'ls_model_type': 'chat', 'ls_temperature': 0.5})) +chunk-------->>>>>>>>>> ('messages', (AIMessageChunk(content='2', additional_kwargs={}, response_metadata={}, id='run--64e055a2-fd8b-4adc-bf35-bf3fe475025a'), {'thread_id': '1', 'recursionLimit': 25, 'langgraph_step': 35, 'langgraph_node': 'agent', 'langgraph_triggers': ('branch:to:agent',), 'langgraph_path': ('__pregel_pull', 'agent'), 'langgraph_checkpoint_ns': 'agent:9bef86ff-4cd5-fcb7-1571-fd67de2c70f9', 'checkpoint_ns': 'agent:9bef86ff-4cd5-fcb7-1571-fd67de2c70f9', 'ls_provider': 'openai', 'ls_model_name': 'doubao-1-5-lite-32k-250115', 'ls_model_type': 'chat', 'ls_temperature': 0.5})) +chunk-------->>>>>>>>>> ('messages', (AIMessageChunk(content=':', additional_kwargs={}, response_metadata={}, id='run--64e055a2-fd8b-4adc-bf35-bf3fe475025a'), {'thread_id': '1', 'recursionLimit': 25, 'langgraph_step': 35, 'langgraph_node': 'agent', 'langgraph_triggers': ('branch:to:agent',), 'langgraph_path': ('__pregel_pull', 'agent'), 'langgraph_checkpoint_ns': 'agent:9bef86ff-4cd5-fcb7-1571-fd67de2c70f9', 'checkpoint_ns': 'agent:9bef86ff-4cd5-fcb7-1571-fd67de2c70f9', 'ls_provider': 'openai', 'ls_model_name': 'doubao-1-5-lite-32k-250115', 'ls_model_type': 'chat', 'ls_temperature': 0.5})) +chunk-------->>>>>>>>>> ('messages', (AIMessageChunk(content='0', additional_kwargs={}, response_metadata={}, id='run--64e055a2-fd8b-4adc-bf35-bf3fe475025a'), {'thread_id': '1', 'recursionLimit': 25, 'langgraph_step': 35, 'langgraph_node': 'agent', 'langgraph_triggers': ('branch:to:agent',), 'langgraph_path': ('__pregel_pull', 'agent'), 'langgraph_checkpoint_ns': 'agent:9bef86ff-4cd5-fcb7-1571-fd67de2c70f9', 'checkpoint_ns': 'agent:9bef86ff-4cd5-fcb7-1571-fd67de2c70f9', 'ls_provider': 'openai', 'ls_model_name': 'doubao-1-5-lite-32k-250115', 'ls_model_type': 'chat', 'ls_temperature': 0.5})) +chunk-------->>>>>>>>>> ('messages', (AIMessageChunk(content='0', additional_kwargs={}, response_metadata={}, id='run--64e055a2-fd8b-4adc-bf35-bf3fe475025a'), {'thread_id': '1', 'recursionLimit': 25, 'langgraph_step': 35, 'langgraph_node': 'agent', 'langgraph_triggers': ('branch:to:agent',), 'langgraph_path': ('__pregel_pull', 'agent'), 'langgraph_checkpoint_ns': 'agent:9bef86ff-4cd5-fcb7-1571-fd67de2c70f9', 'checkpoint_ns': 'agent:9bef86ff-4cd5-fcb7-1571-fd67de2c70f9', 'ls_provider': 'openai', 'ls_model_name': 'doubao-1-5-lite-32k-250115', 'ls_model_type': 'chat', 'ls_temperature': 0.5})) +chunk-------->>>>>>>>>> ('messages', (AIMessageChunk(content=':', additional_kwargs={}, response_metadata={}, id='run--64e055a2-fd8b-4adc-bf35-bf3fe475025a'), {'thread_id': '1', 'recursionLimit': 25, 'langgraph_step': 35, 'langgraph_node': 'agent', 'langgraph_triggers': ('branch:to:agent',), 'langgraph_path': ('__pregel_pull', 'agent'), 'langgraph_checkpoint_ns': 'agent:9bef86ff-4cd5-fcb7-1571-fd67de2c70f9', 'checkpoint_ns': 'agent:9bef86ff-4cd5-fcb7-1571-fd67de2c70f9', 'ls_provider': 'openai', 'ls_model_name': 'doubao-1-5-lite-32k-250115', 'ls_model_type': 'chat', 'ls_temperature': 0.5})) +chunk-------->>>>>>>>>> ('messages', (AIMessageChunk(content='3', additional_kwargs={}, response_metadata={}, id='run--64e055a2-fd8b-4adc-bf35-bf3fe475025a'), {'thread_id': '1', 'recursionLimit': 25, 'langgraph_step': 35, 'langgraph_node': 'agent', 'langgraph_triggers': ('branch:to:agent',), 'langgraph_path': ('__pregel_pull', 'agent'), 'langgraph_checkpoint_ns': 'agent:9bef86ff-4cd5-fcb7-1571-fd67de2c70f9', 'checkpoint_ns': 'agent:9bef86ff-4cd5-fcb7-1571-fd67de2c70f9', 'ls_provider': 'openai', 'ls_model_name': 'doubao-1-5-lite-32k-250115', 'ls_model_type': 'chat', 'ls_temperature': 0.5})) +chunk-------->>>>>>>>>> ('messages', (AIMessageChunk(content='3', additional_kwargs={}, response_metadata={}, id='run--64e055a2-fd8b-4adc-bf35-bf3fe475025a'), {'thread_id': '1', 'recursionLimit': 25, 'langgraph_step': 35, 'langgraph_node': 'agent', 'langgraph_triggers': ('branch:to:agent',), 'langgraph_path': ('__pregel_pull', 'agent'), 'langgraph_checkpoint_ns': 'agent:9bef86ff-4cd5-fcb7-1571-fd67de2c70f9', 'checkpoint_ns': 'agent:9bef86ff-4cd5-fcb7-1571-fd67de2c70f9', 'ls_provider': 'openai', 'ls_model_name': 'doubao-1-5-lite-32k-250115', 'ls_model_type': 'chat', 'ls_temperature': 0.5})) +chunk-------->>>>>>>>>> ('messages', (AIMessageChunk(content=' ', additional_kwargs={}, response_metadata={}, id='run--64e055a2-fd8b-4adc-bf35-bf3fe475025a'), {'thread_id': '1', 'recursionLimit': 25, 'langgraph_step': 35, 'langgraph_node': 'agent', 'langgraph_triggers': ('branch:to:agent',), 'langgraph_path': ('__pregel_pull', 'agent'), 'langgraph_checkpoint_ns': 'agent:9bef86ff-4cd5-fcb7-1571-fd67de2c70f9', 'checkpoint_ns': 'agent:9bef86ff-4cd5-fcb7-1571-fd67de2c70f9', 'ls_provider': 'openai', 'ls_model_name': 'doubao-1-5-lite-32k-250115', 'ls_model_type': 'chat', 'ls_temperature': 0.5})) +chunk-------->>>>>>>>>> ('messages', (AIMessageChunk(content='。', additional_kwargs={}, response_metadata={}, id='run--64e055a2-fd8b-4adc-bf35-bf3fe475025a'), {'thread_id': '1', 'recursionLimit': 25, 'langgraph_step': 35, 'langgraph_node': 'agent', 'langgraph_triggers': ('branch:to:agent',), 'langgraph_path': ('__pregel_pull', 'agent'), 'langgraph_checkpoint_ns': 'agent:9bef86ff-4cd5-fcb7-1571-fd67de2c70f9', 'checkpoint_ns': 'agent:9bef86ff-4cd5-fcb7-1571-fd67de2c70f9', 'ls_provider': 'openai', 'ls_model_name': 'doubao-1-5-lite-32k-250115', 'ls_model_type': 'chat', 'ls_temperature': 0.5})) +chunk-------->>>>>>>>>> ('messages', (AIMessageChunk(content=' ', additional_kwargs={}, response_metadata={}, id='run--64e055a2-fd8b-4adc-bf35-bf3fe475025a'), {'thread_id': '1', 'recursionLimit': 25, 'langgraph_step': 35, 'langgraph_node': 'agent', 'langgraph_triggers': ('branch:to:agent',), 'langgraph_path': ('__pregel_pull', 'agent'), 'langgraph_checkpoint_ns': 'agent:9bef86ff-4cd5-fcb7-1571-fd67de2c70f9', 'checkpoint_ns': 'agent:9bef86ff-4cd5-fcb7-1571-fd67de2c70f9', 'ls_provider': 'openai', 'ls_model_name': 'doubao-1-5-lite-32k-250115', 'ls_model_type': 'chat', 'ls_temperature': 0.5})) +chunk-------->>>>>>>>>> ('messages', (AIMessageChunk(content='', additional_kwargs={}, response_metadata={'finish_reason': 'stop', 'model_name': 'doubao-1-5-lite-32k-250115', 'service_tier': 'default'}, id='run--64e055a2-fd8b-4adc-bf35-bf3fe475025a'), {'thread_id': '1', 'recursionLimit': 25, 'langgraph_step': 35, 'langgraph_node': 'agent', 'langgraph_triggers': ('branch:to:agent',), 'langgraph_path': ('__pregel_pull', 'agent'), 'langgraph_checkpoint_ns': 'agent:9bef86ff-4cd5-fcb7-1571-fd67de2c70f9', 'checkpoint_ns': 'agent:9bef86ff-4cd5-fcb7-1571-fd67de2c70f9', 'ls_provider': 'openai', 'ls_model_name': 'doubao-1-5-lite-32k-250115', 'ls_model_type': 'chat', 'ls_temperature': 0.5})) +// 回复结果 +chunk-------->>>>>>>>>> ('updates', {'agent': {'messages': [AIMessage(content='当前时间是2025年9月2日22:00:33 。 ', additional_kwargs={}, response_metadata={'finish_reason': 'stop', 'model_name': 'doubao-1-5-lite-32k-250115', 'service_tier': 'default'}, id='run--64e055a2-fd8b-4adc-bf35-bf3fe475025a')]}})