如何流式传输调试事件

先决条件

• 流式传输

本指南将介绍如何从您的图中流式传输调试事件 (stream_mode="debug")。流式传输调试事件会生成包含 type 和 timestamp 键的响应。调试事件对应于图执行过程中的不同步骤，共有三种不同类型的步骤会流式传输回您：

• checkpoint：这些事件会在图保存其状态时流式传输，这发生在每个超级步骤之后。更多关于检查点的信息请参见这里
• task：这些事件会在每个超级步骤之前流式传输，并包含关于单个任务的信息。每个超级步骤通过执行一个任务列表来工作，每个任务都针对特定的节点和输入。下面我们将详细讨论这些任务的格式。
• task_result：在每个 task 事件之后，您会看到一个对应的 task_result 事件，正如其名所示，它包含有关在超级步骤中执行的任务结果的信息。继续滚动以了解这些事件的确切结构。

设置

首先，让我们设置客户端和线程：

PythonJavascriptCURL

from langgraph_sdk import get_client

client = get_client(url=<DEPLOYMENT_URL>)
# 使用名为 "agent" 的图
assistant_id = "agent"
# 创建线程
thread = await client.threads.create()
print(thread)

import { Client } from "@langchain/langgraph-sdk";

const client = new Client({ apiUrl: <DEPLOYMENT_URL> });
// 使用名为 "agent" 的图
const assistantID = "agent";
// 创建线程
const thread = await client.threads.create();
console.log(thread);

curl --request POST \
  --url <DEPLOYMENT_URL>/threads \
  --header 'Content-Type: application/json' \
  --data '{}'

输出：

{
    'thread_id': 'd0cbe9ad-f11c-443a-9f6f-dca0ae5a0dd3',
    'created_at': '2024-06-21T22:10:27.696862+00:00',
    'updated_at': '2024-06-21T22:10:27.696862+00:00',
    'metadata': {},
    'status': 'idle',
    'config': {},
    'values': None
}

调试模式下的流图

PythonJavascriptCURL

# 创建输入
input = {
    "messages": [
        {
            "role": "user",
            "content": "旧金山的天气怎么样？",
        }
    ]
}

# 调试流
async for chunk in client.runs.stream(
    thread_id=thread["thread_id"],
    assistant_id=assistant_id,
    input=input,
    stream_mode="debug",
):
    print(f"接收新事件类型：{chunk.event}...")
    print(chunk.data)
    print("\n\n")

// 创建输入
const input = {
  messages: [
    {
      role: "human",
      content: "旧金山的天气怎么样？",
    }
  ]
};

// 调试流
const streamResponse = client.runs.stream(
  thread["thread_id"],
  assistantID,
  {
    input,
    streamMode: "debug"
  }
);

for await (const chunk of streamResponse) {
  console.log(`接收新事件类型：${chunk.event}...`);
  console.log(chunk.data);
  console.log("\n\n");
}

curl --request POST \
 --url <DEPLOYMENT_URL>/threads/<THREAD_ID>/runs/stream \
 --header 'Content-Type: application/json' \
 --data "{
   \"assistant_id\": \"agent\",
   \"input\": {\"messages\": [{\"role\": \"human\", \"content\": \"旧金山的天气怎么样？\"}]},
   \"stream_mode\": [
     \"debug\"
   ]
 }" | \
 sed 's/\r$//' | \
 awk '
 /^event:/ {
     if (data_content != "") {
         print data_content "\n"
     }
     sub(/^event: /, "接收事件类型：", $0)
     printf "%s...\n", $0
     data_content = ""
 }
 /^data:/ {
     sub(/^data: /, "", $0)
     data_content = $0
 }
 END {
     if (data_content != "") {
         print data_content "\n"
     }
 }
 ' 

输出：

接收新事件类型：metadata...
{'run_id': '1ef65938-d7c7-68db-b786-011aa1cb3cd2'}



接收新事件类型：debug...
{'type': 'checkpoint', 'timestamp': '2024-08-28T23:16:28.134680+00:00', 'step': -1, 'payload': {'config': {'tags': [], 'metadata': {'created_by': 'system', 'run_id': '1ef65938-d7c7-68db-b786-011aa1cb3cd2', 'user_id': '', 'graph_id': 'agent', 'thread_id': 'be4fd54d-ff22-4e9e-8876-d5cccc0e8048', 'assistant_id': 'fe096781-5601-53d2-b2f6-0d3403f7e9ca'}, 'callbacks': [None], 'recursion_limit': 25, 'configurable': {'run_id': '1ef65938-d7c7-68db-b786-011aa1cb3cd2', 'user_id': '', 'graph_id': 'agent', 'thread_id': 'be4fd54d-ff22-4e9e-8876-d5cccc0e8048', 'assistant_id': 'fe096781-5601-53d2-b2f6-0d3403f7e9ca', 'checkpoint_id': '1ef65938-d8f3-6b25-bfff-30a8ed6460bd', 'checkpoint_ns': ''}, 'run_id': '1ef65938-d7c7-68db-b786-011aa1cb3cd2'}, 'values': {'messages': [], 'search_results': []}, 'metadata': {'source': 'input', 'writes': {'messages': [{'role': 'human', 'content': "旧金山的天气怎么样？"}]}, 'step': -1}, 'next': ['__start__'], 'tasks': [{'id': 'b40d2c90-dc1e-52db-82d6-08751b769c55', 'name': '__start__', 'interrupts': []}]}}



接收新事件类型：debug...
{'type': 'checkpoint', 'timestamp': '2024-08-28T23:16:28.139821+00:00', 'step': 0, 'payload': {'config': {'tags': [], 'metadata': {'created_by': 'system', 'run_id': '1ef65938-d7c7-68db-b786-011aa1cb3cd2', 'user_id': '', 'graph_id': 'agent', 'thread_id': 'be4fd54d-ff22-4e9e-8876-d5cccc0e8048', 'assistant_id': 'fe096781-5601-53d2-b2f6-0d3403f7e9ca'}, 'callbacks': [None], 'recursion_limit': 25, 'configurable': {'run_id': '1ef65938-d7c7-68db-b786-011aa1cb3cd2', 'user_id': '', 'graph_id': 'agent', 'thread_id': 'be4fd54d-ff22-4e9e-8876-d5cccc0e8048', 'assistant_id': 'fe096781-5601-53d2-b2f6-0d3403f7e9ca', 'checkpoint_id': '1ef65938-d900-63f1-8000-70fe53e0da5c', 'checkpoint_ns': ''}, 'run_id': '1ef65938-d7c7-68db-b786-011aa1cb3cd2'}, 'values': {'messages': [{'content': "旧金山的天气怎么样？", 'additional_kwargs': {}, 'response_metadata': {}, 'type': 'human', 'name': None, 'id': '4123a12c-46cb-4815-bdcc-32537af0cb5b', 'example': False}], 'search_results': []}, 'metadata': {'source': 'loop', 'writes': None, 'step': 0}, 'next': ['call_model'], 'tasks': [{'id': '685d89f6-542b-5e11-8cff-2963e7f4ea63', 'name': 'call_model', 'interrupts': []}]}}



接收新事件类型：debug...
{'type': 'task', 'timestamp': '2024-08-28T23:16:28.139928+00:00', 'step': 1, 'payload': {'id': '600a6ff3-7ff1-570a-b626-f887e9a70f1c', 'name': 'call_model', 'input': {'messages': [{'content': "旧金山的天气怎么样？", 'additional_kwargs': {}, 'response_metadata': {}, 'type': 'human', 'name': None, 'id': '4123a12c-46cb-4815-bdcc-32537af0cb5b', 'example': False}], 'search_results': [], 'final_answer': None}, 'triggers': ['start:call_model']}}



接收新事件类型：debug...
{'type': 'task_result', 'timestamp': '2024-08-28T23:16:28.584833+00:00', 'step': 1, 'payload': {'id': '600a6ff3-7ff1-570a-b626-f887e9a70f1c', 'name': 'call_model', 'error': None, 'result': [['messages', {'content': '旧金山当前天气', 'additional_kwargs': {}, 'response_metadata': {'finish_reason': 'stop', 'model_name': 'gpt-4o-2024-05-13', 'system_fingerprint': 'fp_a2ff031fb5'}, 'type': 'ai', 'name': None, 'id': 'run-0407bff9-3692-4ab5-9e57-2e9f396a3ee4', 'example': False, 'tool_calls': [], 'invalid_tool_calls': [], 'usage_metadata': None}]], 'interrupts': []}}



接收新事件类型：debug...
{'type': 'checkpoint', 'timestamp': '2024-08-28T23:16:28.584991+00:00', 'step': 1, 'payload': {'config': {'tags': [], 'metadata': {'created_by': 'system', 'run_id': '1ef65938-d7c7-68db-b786-011aa1cb3cd2', 'user_id': '', 'graph_id': 'agent', 'thread_id': 'be4fd54d-ff22-4e9e-8876-d5cccc0e8048', 'assistant_id': 'fe096781-5601-53d2-b2f6-0d3403f7e9ca'}, 'callbacks': [None], 'recursion_limit': 25, 'configurable': {'run_id': '1ef65938-d7c7-68db-b786-011aa1cb3cd2', 'user_id': '', 'graph_id': 'agent', 'thread_id': 'be4fd54d-ff22-4e9e-8876-d5cccc0e8048', 'assistant_id': 'fe096781-5601-53d2-b2f6-0d3403f7e9ca', 'checkpoint_id': '1ef65938-dd3f-616f-8001-ce1c6f31e130', 'checkpoint_ns': ''}, 'run_id': '1ef65938-d7c7-68db-b786-011aa1cb3cd2'}, 'values': {'messages': [{'content': "旧金山的天气怎么样？", 'additional_kwargs': {}, 'response_metadata': {}, 'type': 'human', 'name': None, 'id': '4123a12c-46cb-4815-bdcc-32537af0cb5b', 'example': False}, {'content': '旧金山当前天气', 'additional_kwargs': {}, 'response_metadata': {'finish_reason': 'stop', 'model_name': 'gpt-4o-2024-05-13', 'system_fingerprint': 'fp_a2ff031fb5'}, 'type': 'ai', 'name': None, 'id': 'run-0407bff9-3692-4ab5-9e57-2e9f396a3ee4', 'example': False, 'tool_calls': [], 'invalid_tool_calls': [], 'usage_metadata': None}], 'search_results': []}, 'metadata': {'source': 'loop', 'writes': {'call_model': {'messages': {'content': '旧金山当前天气', 'additional_kwargs': {}, 'response_metadata': {'finish_reason': 'stop', 'model_name': 'gpt-4o-2024-05-13', 'system_fingerprint': 'fp_a2ff031fb5'}, 'type': 'ai', 'name': None, 'id': 'run-0407bff9-3692-4ab5-9e57-2e9f396a3ee4', 'example': False, 'tool_calls': [], 'invalid_tool_calls': [], 'usage_metadata': None}}}, 'step': 1}, 'next': ['exa_search', 'tavily_search'], 'tasks': [{'id': '43865935-be38-5f6e-8d38-d44ef369c278', 'name': 'exa_search', 'interrupts': []}, {'id': 'dc220677-2720-56c7-a524-caaff60fce2c', 'name': 'tavily_search', 'interrupts': []}]}}



接收新事件类型：debug...
{'type': 'task', 'timestamp': '2024-08-28T23:16:28.585219+00:00', 'step': 2, 'payload': {'id': '870b5854-2f84-533d-8e7d-87158ee948fc', 'name': 'exa_search', 'input': {'messages': [{'content': "旧金山的天气怎么样？", 'additional_kwargs': {}, 'response_metadata': {}, 'type': 'human', 'name': None, 'id': '4123a12c-46cb-4815-bdcc-32537af0cb5b', 'example': False}, {'content': '旧金山当前天气', 'additional_kwargs': {}, 'response_metadata': {'finish_reason': 'stop', 'model_name': 'gpt-4o-2024-05-13', 'system_fingerprint': 'fp_a2ff031fb5'}, 'type': 'ai', 'name': None, 'id': 'run-0407bff9-3692-4ab5-9e57-2e9f396a3ee4', 'example': False, 'tool_calls': [], 'invalid_tool_calls': [], 'usage_metadata': None}], 'search_results': [], 'final_answer': None}, 'triggers': ['call_model']}}



接收新事件类型：debug...
{'type': 'task', 'timestamp': '2024-08-28T23:16:28.585219+00:00', 'step': 2, 'payload': {'id': '7589abfc-04df-58c6-8835-be172f84a7ff', 'name': 'tavily_search', 'input': {'messages': [{'content': "旧金山的天气怎么样？", 'additional_kwargs': {}, 'response_metadata': {}, 'type': 'human', 'name': None, 'id': '4123a12c-46cb-4815-bdcc-32537af0cb5b', 'example': False}, {'content': '旧金山当前天气', 'additional_kwargs': {}, 'response_metadata': {'finish_reason': 'stop', 'model_name': 'gpt-4o-2024-05-13', 'system_fingerprint': 'fp_a2ff031fb5'}, 'type': 'ai', 'name': None, 'id': 'run-0407bff9-3692-4ab5-9e57-2e9f396a3ee4', 'example': False, 'tool_calls': [], 'invalid_tool_calls': [], 'usage_metadata': None}], 'search_results': [], 'final_answer': None}, 'triggers': ['call_model']}}



接收新事件类型：debug...
{'type': 'task_result', 'timestamp': '2024-08-28T23:16:32.422243+00:00', 'step': 2, 'payload': {'id': '7589abfc-04df-58c6-8835-be172f84a7ff', 'name': 'tavily_search', 'error': None, 'result': [['search_results', ["{'location': {'name': 'San Francisco', 'region': 'California', 'country': 'United States of America', 'lat': 37.78, 'lon': -122.42, 'tz_id': 'America/Los_Angeles', 'localtime_epoch': 1724886988, 'localtime': '2024-08-28 16:16'}, 'current': {'last_updated_epoch': 1724886900, 'last_updated': '2024-08-28 16:15', 'temp_c': 22.2, 'temp_f': 72.0, 'is_day': 1, 'condition': {'text': 'Partly cloudy', 'icon': '//cdn.weatherapi.com/weather/64x64/day/116.png', 'code': 1003}, 'wind_mph': 16.1, 'wind_kph': 25.9, 'wind_degree': 300, 'wind_dir': 'WNW', 'pressure_mb': 1013.0, 'pressure_in': 29.91, 'precip_mm': 0.0, 'precip_in': 0.0, 'humidity': 61, 'cloud': 25, 'feelslike_c': 24.6, 'feelslike_f': 76.4, 'windchill_c': 19.6, 'windchill_f': 67.2, 'heatindex_c': 19.7, 'heatindex_f': 67.4, 'dewpoint_c': 13.0, 'dewpoint_f': 55.5, 'vis_km': 16.0, 'vis_miles': 9.0, 'uv': 5.0, 'gust_mph': 18.7, 'gust_kph': 30.0}}"]]], 'interrupts': []}}



接收新事件类型：debug...
{'type': 'task_result', 'timestamp': '2024-08-28T23:16:34.750124+00:00', 'step': 2, 'payload': {'id': '870b5854-2f84-533d-8e7d-87158ee948fc', 'name': 'exa_search', 'error': None, 'result': [['search_results', ['The time period when the sun is no more than 6 degrees below the horizon at either sunrise or sunset. The horizon should be clearly defined and the brightest stars should be visible under good atmospheric conditions (i.e. no moonlight, or other lights). One still should be able to carry on ordinary outdoor activities. The time period when the sun is between 6 and 12 degrees below the horizon at either sunrise or sunset. The horizon is well defined and the outline of objects might be visible without artificial light. Ordinary outdoor activities are not possible at this time without extra illumination. The time period when the sun is between 12 and 18 degrees below the horizon at either sunrise or sunset. The sun does not contribute to the illumination of the sky before this time in the morning, or after this time in the evening. In the beginning of morning astronomical twilight and at the end of astronomical twilight in the evening, sky illumination is very faint, and might be undetectable. The time of Civil Sunset minus the time of Civil Sunrise. The time of Actual Sunset minus the time of Actual Sunrise. The change in length of daylight between today and tomorrow is also listed when available.']]], 'interrupts': []}}



接收新事件类型：debug...
{'type': 'checkpoint', 'timestamp': '2024-08-28T23:16:34.750266+00:00', 'step': 2, 'payload': {'config': {'tags': [], 'metadata': {'created_by': 'system', 'run_id': '1ef65938-d7c7-68db-b786-011aa1cb3cd2', 'user_id': '', 'graph_id': 'agent', 'thread_id': 'be4fd54d-ff22-4e9e-8876-d5cccc0e8048', 'assistant_id': 'fe096781-5601-53d2-b2f6-0d3403f7e9ca'}, 'callbacks': [None], 'recursion_limit': 25, 'configurable': {'run_id': '1ef65938-d7c7-68db-b786-011aa1cb3cd2', 'user_id': '', 'graph_id': 'agent', 'thread_id': 'be4fd54d-ff22-4e9e-8876-d5cccc0e8048', 'assistant_id': 'fe096781-5601-53d2-b2f6-0d3403f7e9ca', 'checkpoint_id': '1ef65939-180b-6087-8002-f969296f8e3d', 'checkpoint_ns': ''}, 'run_id': '1ef65938-d7c7-68db-b786-011aa1cb3cd2'}, 'values': {'messages': [{'content': "旧金山的天气怎么样？", 'additional_kwargs': {}, 'response_metadata': {}, 'type': 'human', 'name': None, 'id': '4123a12c-46cb-4815-bdcc-32537af0cb5b', 'example': False}, {'content': '旧金山当前天气', 'additional_kwargs': {}, 'response_metadata': {'finish_reason': 'stop', 'model_name': 'gpt-4o-2024-05-13', 'system_fingerprint': 'fp_a2ff031fb5'}, 'type': 'ai', 'name': None, 'id': 'run-0407bff9-3692-4ab5-9e57-2e9f396a3ee4', 'example': False, 'tool_calls': [], 'invalid_tool_calls': [], 'usage_metadata': None}], 'search_results': ['The time period when the sun is no more than 6 degrees below the horizon at either sunrise or sunset. The horizon should be clearly defined and the brightest stars should be visible under good atmospheric conditions (i.e. no moonlight, or other lights). One still should be able to carry on ordinary outdoor activities. The time period when the sun is between 6 and 12 degrees below the horizon at either sunrise or sunset. The horizon is well defined and the outline of objects might be visible without artificial light. Ordinary outdoor activities are not possible at this time without extra illumination. The time period when the sun is between 12 and 18 degrees below the horizon at either sunrise or sunset. The sun does not contribute to the illumination of the sky before this time in the morning, or after this time in the evening. In the beginning of morning astronomical twilight and at the end of astronomical twilight in the evening, sky illumination is very faint, and might be undetectable. The time of Civil Sunset minus the time of Civil Sunrise. The time of Actual Sunset minus the time of Actual Sunrise. The change in length of daylight between today and tomorrow is also listed when available.', "{'location': {'name': 'San Francisco', 'region': 'California', 'country': 'United States of America', 'lat': 37.78, 'lon': -122.42, 'tz_id': 'America/Los_Angeles', 'localtime_epoch': 1724886988, 'localtime': '2024-08-28 16:16'}, 'current': {'last_updated_epoch': 1724886900, 'last_updated': '2024-08-28 16:15', 'temp_c': 22.2, 'temp_f': 72.0, 'is_day': 1, 'condition': {'text': 'Partly cloudy', 'icon': '//cdn.weatherapi.com/weather/64x64/day/116.png', 'code': 1003}, 'wind_mph': 16.1, 'wind_kph': 25.9, 'wind_degree': 300, 'wind_dir': 'WNW', 'pressure_mb': 1013.0, 'pressure_in': 29.91, 'precip_mm': 0.0, 'precip_in': 0.0, 'humidity': 61, 'cloud': 25, 'feelslike_c': 24.6, 'feelslike_f': 76.4, 'windchill_c': 19.6, 'windchill_f': 67.2, 'heatindex_c': 19.7, 'heatindex_f': 67.4, 'dewpoint_c': 13.0, 'dewpoint_f': 55.5, 'vis_km': 16.0, 'vis_miles': 9.0, 'uv': 5.0, 'gust_mph': 18.7, 'gust_kph': 30.0}}"]}, 'metadata': {'source': 'loop', 'writes': {'exa_search': {'search_results': ['The time period when the sun is no more than 6 degrees below the horizon at either sunrise or sunset. The horizon should be clearly defined and the brightest stars should be visible under good atmospheric conditions (i.e. no moonlight, or other lights). One still should be able to carry on ordinary outdoor activities. The time period when the sun is between 6 and 12 degrees below the horizon at either sunrise or sunset. The horizon is well defined and the outline of objects might be visible without artificial light. Ordinary outdoor activities are not possible at this time without extra illumination. The time period when the sun is between 12 and 18 degrees below the horizon at either sunrise or sunset. The sun does not contribute to the illumination of the sky before this time in the morning, or after this time in the evening. In the beginning of morning astronomical twilight and at the end of astronomical twilight in the evening, sky illumination is very faint, and might be undetectable. The time of Civil Sunset minus the time of Civil Sunrise. The time of Actual Sunset minus the time of Actual Sunrise. The change in length of daylight between today and tomorrow is also listed when available.']}, 'tavily_search': {'search_results': ["{'location': {'name': 'San Francisco', 'region': 'California', 'country': 'United States of America', 'lat': 37.78, 'lon': -122.42, 'tz_id': 'America/Los_Angeles', 'localtime_epoch': 1724886988, 'localtime': '2024-08-28 16:16'}, 'current': {'last_updated_epoch': 1724886900, 'last_updated': '2024-08-28 16:15', 'temp_c': 22.2, 'temp_f': 72.0, 'is_day': 1, 'condition': {'text': 'Partly cloudy', 'icon': '//cdn.weatherapi.com/weather/64x64/day/116.png', 'code': 1003}, 'wind_mph': 16.1, 'wind_kph': 25.9, 'wind_degree': 300, 'wind_dir': 'WNW', 'pressure_mb': 1013.0, 'pressure_in': 29.91, 'precip_mm': 0.0, 'precip_in': 0.0, 'humidity': 61, 'cloud': 25, 'feelslike_c': 24.6, 'feelslike_f': 76.4, 'windchill_c': 19.6, 'windchill_f': 67.2, 'heatindex_c': 19.7, 'heatindex_f': 67.4, 'dewpoint_c': 13.0, 'dewpoint_f': 55.5, 'vis_km': 16.0, 'vis_miles': 9.0, 'uv': 5.0, 'gust_mph': 18.7, 'gust_kph': 30.0}}"]}}, 'step': 2}, 'next': ['summarize_search_results'], 'tasks': [{'id': '7263c738-516d-5708-b318-2c8ef54d4a33', 'name': 'summarize_search_results', 'interrupts': []}]}}



接收新事件类型：debug...
{'type': 'task', 'timestamp': '2024-08-28T23:16:34.750394+00:00', 'step': 3, 'payload': {'id': '5beaa05d-57d4-5acd-95c1-c7093990910f', 'name': 'summarize_search_results', 'input': {'messages': [{'content': "旧金山的天气怎么样？", 'additional_kwargs': {}, 'response_metadata': {}, 'type': 'human', 'name': None, 'id': '4123a12c-46cb-4815-bdcc-32537af0cb5b', 'example': False}, {'content': '旧金山当前天气', 'additional_kwargs': {}, 'response_metadata': {'finish_reason': 'stop', 'model_name': 'gpt-4o-2024-05-13', 'system_fingerprint': 'fp_a2ff031fb5'}, 'type': 'ai', 'name': None, 'id': 'run-0407bff9-3692-4ab5-9e57-2e9f396a3ee4', 'example': False, 'tool_calls': [], 'invalid_tool_calls': [], 'usage_metadata': None}], 'search_results': ['The time period when the sun is no more than 6 degrees below the horizon at either sunrise or sunset. The horizon should be clearly defined and the brightest stars should be visible under good atmospheric conditions (i.e. no moonlight, or other lights). One still should be able to carry on ordinary outdoor activities. The time period when the sun is between 6 and 12 degrees below the horizon at either sunrise or sunset. The horizon is well defined and the outline of objects might be visible without artificial light. Ordinary outdoor activities are not possible at this time without extra illumination. The time period when the sun is between 12 and 18 degrees below the horizon at either sunrise or sunset. The sun does not contribute to the illumination of the sky before this time in the morning, or after this time in the evening. In the beginning of morning astronomical twilight and at the end of astronomical twilight in the evening, sky illumination is very faint, and might be undetectable. The time of Civil Sunset minus the time of Civil Sunrise. The time of Actual Sunset minus the time of Actual Sunrise. The change in length of daylight between today and tomorrow is also listed when available.', "{'location': {'name': 'San Francisco', 'region': 'California', 'country': 'United States of America', 'lat': 37.78, 'lon': -122.42, 'tz_id': 'America/Los_Angeles', 'localtime_epoch': 1724886988, 'localtime': '2024-08-28 16:16'}, 'current': {'last_updated_epoch': 1724886900, 'last_updated': '2024-08-28 16:15', 'temp_c': 22.2, 'temp_f': 72.0, 'is_day': 1, 'condition': {'text': 'Partly cloudy', 'icon': '//cdn.weatherapi.com/weather/64x64/day/116.png', 'code': 1003}, 'wind_mph': 16.1, 'wind_kph': 25.9, 'wind_degree': 300, 'wind_dir': 'WNW', 'pressure_mb': 1013.0, 'pressure_in': 29.91, 'precip_mm': 0.0, 'precip_in': 0.0, 'humidity': 61, 'cloud': 25, 'feelslike_c': 24.6, 'feelslike_f': 76.4, 'windchill_c': 19.6, 'windchill_f': 67.2, 'heatindex_c': 19.7, 'heatindex_f': 67.4, 'dewpoint_c': 13.0, 'dewpoint_f': 55.5, 'vis_km': 16.0, 'vis_miles': 9.0, 'uv': 5.0, 'gust_mph': 18.7, 'gust_kph': 30.0}}"], 'final_answer': None}, 'triggers': ['exa_search', 'tavily_search']}}



接收新事件类型：debug...
{'type': 'task_result', 'timestamp': '2024-08-28T23:16:35.851058+00:00', 'step': 3, 'payload': {'id': '5beaa05d-57d4-5acd-95c1-c7093990910f', 'name': 'summarize_search_results', 'error': None, 'result': [['final_answer', {'content': "提供的数据详细描述了太阳相对于地平线的位置所对应的各个晨昏蒙影时期，以及旧金山，加利福尼亚州，2024年8月28日的当前天气信息。天气部分多云，温度为22.2°C（72.0°F），有适度的西北风（16.1英里/小时），紫外线指数为5。", 'additional_kwargs': {}, 'response_metadata': {'finish_reason': 'stop', 'model_name': 'gpt-4o-2024-05-13', 'system_fingerprint': 'fp_157b3831f5'}, 'type': 'ai', 'name': None, 'id': 'run-928c997b-9d85-4664-bd20-97ade4cc655e', 'example': False, 'tool_calls': [], 'invalid_tool_calls': [], 'usage_metadata': None}]], 'interrupts': []}}



接收新事件类型：debug...
{'type': 'checkpoint', 'timestamp': '2024-08-28T23:16:35.851194+00:00', 'step': 3, 'payload': {'config': {'tags': [], 'metadata': {'created_by': 'system', 'run_id': '1ef65938-d7c7-68db-b786-011aa1cb3cd2', 'user_id': '', 'graph_id': 'agent', 'thread_id': 'be4fd54d-ff22-4e9e-8876-d5cccc0e8048', 'assistant_id': 'fe096781-5601-53d2-b2f6-0d3403f7e9ca'}, 'callbacks': [None], 'recursion_limit': 25, 'configurable': {'run_id': '1ef65938-d7c7-68db-b786-011aa1cb3cd2', 'user_id': '', 'graph_id': 'agent', 'thread_id': 'be4fd54d-ff22-4e9e-8876-d5cccc0e8048', 'assistant_id': 'fe096781-5601-53d2-b2f6-0d3403f7e9ca', 'checkpoint_id': '1ef65939-228a-6d93-8003-8b06d7483024', 'checkpoint_ns': ''}, 'run_id': '1ef65938-d7c7-68db-b786-011aa1cb3cd2'}, 'values': {'messages': [{'content': "旧金山的天气怎么样？", 'additional_kwargs': {}, 'response_metadata': {}, 'type': 'human', 'name': None, 'id': '4123a12c-46cb-4815-bdcc-32537af0cb5b', 'example': False}, {'content': '旧金山当前天气', 'additional_kwargs': {}, 'response_metadata': {'finish_reason': 'stop', 'model_name': 'gpt-4o-2024-05-13', 'system_fingerprint': 'fp_a2ff031fb5'}, 'type': 'ai', 'name': None, 'id': 'run-0407bff9-3692-4ab5-9e57-2e9f396a3ee4', 'example': False, 'tool_calls': [], 'invalid_tool_calls': [], 'usage_metadata': None}], 'search_results': ['The time period when the sun is no more than 6 degrees below the horizon at either sunrise or sunset. The horizon should be clearly defined and the brightest stars should be visible under good atmospheric conditions (i.e. no moonlight, or other lights). One still should be able to carry on ordinary outdoor activities. The time period when the sun is between 6 and 12 degrees below the horizon at either sunrise or sunset. The horizon is well defined and the outline of objects might be visible without artificial light. Ordinary outdoor activities are not possible at this time without extra illumination. The time period when the sun is between 12 and 18 degrees below the horizon at either sunrise or sunset. The sun does not contribute to the illumination of the sky before this time in the morning, or after this time in the evening. In the beginning of morning astronomical twilight and at the end of astronomical twilight in the evening, sky illumination is very faint, and might be undetectable. The time of Civil Sunset minus the time of Civil Sunrise. The time of Actual Sunset minus the time of Actual Sunrise. The change in length of daylight between today and tomorrow is also listed when available.', "{'location': {'name': 'San Francisco', 'region': 'California', 'country': 'United States of America', 'lat': 37.78, 'lon': -122.42, 'tz_id': 'America/Los_Angeles', 'localtime_epoch': 1724886988, 'localtime': '2024-08-28 16:16'}, 'current': {'last_updated_epoch': 1724886900, 'last_updated': '2024-08-28 16:15', 'temp_c': 22.2, 'temp_f': 72.0, 'is_day': 1, 'condition': {'text': 'Partly cloudy', 'icon': '//cdn.weatherapi.com/weather/64x64/day/116.png', 'code': 1003}, 'wind_mph': 16.1, 'wind_kph': 25.9, 'wind_degree': 300, 'wind_dir': 'WNW', 'pressure_mb': 1013.0, 'pressure_in': 29.91, 'precip_mm': 0.0, 'precip_in': 0.0, 'humidity': 61, 'cloud': 25, 'feelslike_c': 24.6, 'feelslike_f': 76.4, 'windchill_c': 19.6, 'windchill_f': 67.2, 'heatindex_c': 19.7, 'heatindex_f': 67.4, 'dewpoint_c': 13.0, 'dewpoint_f': 55.5, 'vis_km': 16.0, 'vis_miles': 9.0, 'uv': 5.0, 'gust_mph': 18.7, 'gust_kph': 30.0}}"], 'final_answer': {'content': "提供的数据详细描述了太阳相对于地平线的位置所对应的各个晨昏蒙影时期，以及旧金山，加利福尼亚州，2024年8月28日的当前天气信息。天气部分多云，温度为22.2°C（72.0°F），有适度的西北风（16.1英里/小时），紫外线指数为5。", 'additional_kwargs': {}, 'response_metadata': {'finish_reason': 'stop', 'model_name': 'gpt-4o-2024-05-13', 'system_fingerprint': 'fp_157b3831f5'}, 'type': 'ai', 'name': None, 'id': 'run-928c997b-9d85-4664-bd20-97ade4cc655e', 'example': False, 'tool_calls': [], 'invalid_tool_calls': [], 'usage_metadata': None}}, 'metadata': {'source': 'loop', 'writes': {'summarize_search_results': {'final_answer': {'content': "提供的数据详细描述了太阳相对于地平线的位置所对应的各个晨昏蒙影时期，以及旧金山，加利福尼亚州，2024年8月28日的当前天气信息。天气部分多云，温度为22.2°C（72.0°F），有适度的西北风（16.1英里/小时），紫外线指数为5。", 'additional_kwargs': {}, 'response_metadata': {'finish_reason': 'stop', 'model_name': 'gpt-4o-2024-05-13', 'system_fingerprint': 'fp_157b3831f5'}, 'type': 'ai', 'name': None, 'id': 'run-928c997b-9d85-4664-bd20-97ade4cc655e', 'example': False, 'tool_calls': [], 'invalid_tool_calls': [], 'usage_metadata': None}}}, 'step': 3}, 'next': [], 'tasks': []}}

我们看到，调试事件从步骤0和1的两个checkpoint事件开始，分别代表图创建前和创建后的检查点。然后我们看到一个task和相应的task_result事件，对应于我们的第一个节点call_model被触发。在它完成之后，整个超级步骤结束，因此图保存另一个检查点，我们看到相应的checkpoint事件。

接下来执行了两个搜索节点，它们在同一个超级步骤中并行执行——具体来说，一个节点将执行Exa搜索，而另一个将使用Tavily。在同一个超级步骤中并行执行这些节点会创建两个task事件和两个相应的task_result事件。当我们收到这两个task_result事件后，我们看到另一个checkpoint事件，正如我们所期望的。

最后，我们看到一个最终的task和task_result对，对应于图中的最后一个节点summarize_search_results。一旦这个超级步骤完成，我们看到一个最终的checkpoint事件，对应于此运行的最终检查点。

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