如何流式传输调试事件

先决条件

• 流式传输

本指南介绍如何从您的图（stream_mode="debug"）流式传输调试事件。流式传输调试事件会生成包含 type 和 timestamp 键的响应。调试事件对应于图中执行的不同步骤，有三种不同类型的步骤将流式传输回给您

• checkpoint：这些事件将在图保存其状态时流式传输，这发生在每个超步骤之后。在此处阅读有关检查点的更多信息 here
• task：这些事件将在每个超步骤之前流式传输，并将包含有关单个任务的信息。每个超步骤都通过执行任务列表来工作，其中每个任务都限定于特定节点和输入。下面我们将更详细地讨论这些任务的格式。
• task_result：在每个 task 事件之后，您将看到一个对应的 task_result 事件，顾名思义，它包含有关超步骤中执行的任务结果的信息。向下滚动以了解有关这些事件的确切结构的更多信息。

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>)
# Using the graph deployed with the name "agent"
assistant_id = "agent"
# create thread
thread = await client.threads.create()
print(thread)

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

const client = new Client({ apiUrl: <DEPLOYMENT_URL> });
// Using the graph deployed with the name "agent"
const assistantID = "agent";
// create thread
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
}

在调试模式下流式传输图

PythonJavascriptCURL

# create input
input = {
    "messages": [
        {
            "role": "user",
            "content": "What's the weather in SF?",
        }
    ]
}

# stream debug
async for chunk in client.runs.stream(
    thread_id=thread["thread_id"],
    assistant_id=assistant_id,
    input=input,
    stream_mode="debug",
):
    print(f"Receiving new event of type: {chunk.event}...")
    print(chunk.data)
    print("\n\n")

// create input
const input = {
  messages: [
    {
      role: "human",
      content: "What's the weather in SF?",
    }
  ]
};

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

for await (const chunk of streamResponse) {
  console.log(`Receiving new event of type: ${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\": \"What's the weather in SF?\"}]},
   \"stream_mode\": [
     \"debug\"
   ]
 }" | \
 sed 's/\r$//' | \
 awk '
 /^event:/ {
     if (data_content != "") {
         print data_content "\n"
     }
     sub(/^event: /, "Receiving event of type: ", $0)
     printf "%s...\n", $0
     data_content = ""
 }
 /^data:/ {
     sub(/^data: /, "", $0)
     data_content = $0
 }
 END {
     if (data_content != "") {
         print data_content "\n"
     }
 }
 ' 

输出

Receiving new event of type: metadata...
{'run_id': '1ef65938-d7c7-68db-b786-011aa1cb3cd2'}



Receiving new event of type: 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': "What's the weather in SF?"}]}, 'step': -1}, 'next': ['__start__'], 'tasks': [{'id': 'b40d2c90-dc1e-52db-82d6-08751b769c55', 'name': '__start__', 'interrupts': []}]}}



Receiving new event of type: 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': "What's the weather in SF?", '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': []}]}}



Receiving new event of type: 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': "What's the weather in SF?", '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']}}



Receiving new event of type: 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': 'Current weather in San Francisco', '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': []}}



Receiving new event of type: 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': "What's the weather in SF?", 'additional_kwargs': {}, 'response_metadata': {}, 'type': 'human', 'name': None, 'id': '4123a12c-46cb-4815-bdcc-32537af0cb5b', 'example': False}, {'content': 'Current weather in San Francisco', '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': 'Current weather in San Francisco', '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': []}]}}



Receiving new event of type: 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': "What's the weather in SF?", 'additional_kwargs': {}, 'response_metadata': {}, 'type': 'human', 'name': None, 'id': '4123a12c-46cb-4815-bdcc-32537af0cb5b', 'example': False}, {'content': 'Current weather in San Francisco', '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']}}



Receiving new event of type: 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': "What's the weather in SF?", 'additional_kwargs': {}, 'response_metadata': {}, 'type': 'human', 'name': None, 'id': '4123a12c-46cb-4815-bdcc-32537af0cb5b', 'example': False}, {'content': 'Current weather in San Francisco', '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']}}



Receiving new event of type: 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': []}}



Receiving new event of type: 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': []}}



Receiving new event of type: 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': "What's the weather in SF?", 'additional_kwargs': {}, 'response_metadata': {}, 'type': 'human', 'name': None, 'id': '4123a12c-46cb-4815-bdcc-32537af0cb5b', 'example': False}, {'content': 'Current weather in San Francisco', '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': []}]}}



Receiving new event of type: 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': "What's the weather in SF?", 'additional_kwargs': {}, 'response_metadata': {}, 'type': 'human', 'name': None, 'id': '4123a12c-46cb-4815-bdcc-32537af0cb5b', 'example': False}, {'content': 'Current weather in San Francisco', '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']}}



Receiving new event of type: 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': "The provided data details various twilight periods based on the sun's position relative to the horizon, alongside current weather information for San Francisco, California, as of August 28, 2024. The weather is partly cloudy with a temperature of 22.2°C (72.0°F), moderate wind from the WNW at 16.1 mph, and the UV index is 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': []}}



Receiving new event of type: 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': "What's the weather in SF?", 'additional_kwargs': {}, 'response_metadata': {}, 'type': 'human', 'name': None, 'id': '4123a12c-46cb-4815-bdcc-32537af0cb5b', 'example': False}, {'content': 'Current weather in San Francisco', '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': "The provided data details various twilight periods based on the sun's position relative to the horizon, alongside current weather information for San Francisco, California, as of August 28, 2024. The weather is partly cloudy with a temperature of 22.2°C (72.0°F), moderate wind from the WNW at 16.1 mph, and the UV index is 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': "The provided data details various twilight periods based on the sun's position relative to the horizon, alongside current weather information for San Francisco, California, as of August 28, 2024. The weather is partly cloudy with a temperature of 22.2°C (72.0°F), moderate wind from the WNW at 16.1 mph, and the UV index is 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': []}}

我们看到我们的调试事件以步骤 0 和 1 的两个 checkpoint 事件开始，这表示在创建图之前和创建图之后进行检查点操作。然后我们看到一个 task 和对应的 task_result，它们对应于我们的第一个节点 call_model 被触发。完成之后，整个超步骤结束，因此图保存另一个检查点，我们看到对应的 checkpoint 事件。

下一个超步骤并行执行了两个搜索节点 in parallel - 具体来说，一个节点将执行 Exa 搜索，而另一个节点将使用 Tavily。在同一超步骤中并行执行这些节点会创建 2 个 task 事件和两个对应的 task_result 事件。在我们收到这两个 task_result 事件后，我们看到了另一个 checkpoint 事件，正如我们所预期的那样。

最后，我们看到与 summarize_search_results 节点对应的最后一个 task 和 task_result 对，这是我们图中的最后一个节点。一旦此超步骤完成，我们就会看到与此运行的最终检查点对应的最后一个 checkpoint 事件。

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