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feat: langgraph python agent intergration (#140)
* feat(langgraph-py): add example setup * feat(langgraph-py): create the LangGraph python agent * feat(langgraph-py): add reasoning infrastructure * feat(langgraph-py): use new folder structure * feat(langgraph-py): several fixes * feat(langgraph-py): fix resolving of null/none value * chore(langgraph-py): prepare for release * feat(langgraph-py): fix reading of node name * feat(langgraph-py): properly read forwarded props * feat(langgraph-py): several fixes * feat(langgraph-py): several fixes * feat(langgraph-fastapi): introduce TS langgraph http agent * align with main
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‎typescript-sdk/apps/dojo/src/agents.ts

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@@ -8,7 +8,7 @@ import { MastraClient } from "@mastra/client-js";
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import { MastraAgent } from "@ag-ui/mastra";
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import { VercelAISDKAgent } from "@ag-ui/vercel-ai-sdk";
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import { openai } from "@ai-sdk/openai";
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import { LangGraphAgent } from "@ag-ui/langgraph";
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import { LangGraphAgent, LangGraphHttpAgent } from "@ag-ui/langgraph";
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import { AgnoAgent } from "@ag-ui/agno";
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import { LlamaIndexAgent } from "@ag-ui/llamaindex";
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import { CrewAIAgent } from "@ag-ui/crewai";
@@ -113,6 +113,31 @@ export const agentsIntegrations: AgentIntegrationConfig[] = [
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};
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},
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},
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{
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id: "langgraph-fastapi",
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agents: async () => {
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return {
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agentic_chat: new LangGraphHttpAgent({
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url: "http://localhost:8000/agent/agentic_chat",
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}),
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agentic_generative_ui: new LangGraphHttpAgent({
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url: "http://localhost:8000/agent/agentic_generative_ui",
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}),
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human_in_the_loop: new LangGraphHttpAgent({
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url: "http://localhost:8000/agent/human_in_the_loop",
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}),
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predictive_state_updates: new LangGraphHttpAgent({
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url: "http://localhost:8000/agent/predictive_state_updates",
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}),
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shared_state: new LangGraphHttpAgent({
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url: "http://localhost:8000/agent/shared_state",
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}),
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tool_based_generative_ui: new LangGraphHttpAgent({
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url: "http://localhost:8000/agent/tool_based_generative_ui",
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}),
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};
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},
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},
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{
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id: "agno",
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agents: async () => {

‎typescript-sdk/apps/dojo/src/menu.ts

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@@ -50,6 +50,18 @@ export const menuIntegrations: MenuIntegrationConfig[] = [
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"shared_state",
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],
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},
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{
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id: "langgraph-fastapi",
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name: "LangGraph FastAPI",
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features: [
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"agentic_chat",
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"human_in_the_loop",
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"agentic_generative_ui",
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"tool_based_generative_ui",
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"predictive_state_updates",
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"shared_state",
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],
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},
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{
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id: "agno",
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name: "Agno",

‎typescript-sdk/integrations/langgraph/python/.gitignore

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# Byte-compiled / optimized / DLL files
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__pycache__/
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*.py[cod]
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*$py.class
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# C extensions
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*.so
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# Distribution / packaging
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.Python
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build/
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develop-eggs/
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dist/
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downloads/
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eggs/
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.eggs/
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lib/
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lib64/
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parts/
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sdist/
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var/
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wheels/
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pip-wheel-metadata/
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share/python-wheels/
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*.egg-info/
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.installed.cfg
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*.egg
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MANIFEST
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# PyInstaller
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# Usually these files are written by a python script from a template
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# before PyInstaller builds the exe, so as to inject date/other infos into it.
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*.manifest
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*.spec
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# Installer logs
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pip-log.txt
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pip-delete-this-directory.txt
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# Unit test / coverage reports
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htmlcov/
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.tox/
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.nox/
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.coverage
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.coverage.*
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.cache
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nosetests.xml
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coverage.xml
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*.cover
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*.py,cover
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.hypothesis/
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.pytest_cache/
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# Translations
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*.mo
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*.pot
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# Django stuff:
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*.log
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local_settings.py
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db.sqlite3
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db.sqlite3-journal
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# Flask stuff:
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instance/
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.webassets-cache
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# Scrapy stuff:
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.scrapy
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# Sphinx documentation
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docs/_build/
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# PyBuilder
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target/
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# Jupyter Notebook
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.ipynb_checkpoints
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# IPython
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profile_default/
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ipython_config.py
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# pyenv
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.python-version
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# pipenv
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# According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control.
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# However, in case of collaboration, if having platform-specific dependencies or dependencies
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# having no cross-platform support, pipenv may install dependencies that don't work, or not
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# install all needed dependencies.
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#Pipfile.lock
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# PEP 582; used by e.g. github.com/David-OConnor/pyflow
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__pypackages__/
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# Celery stuff
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celerybeat-schedule
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celerybeat.pid
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# SageMath parsed files
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*.sage.py
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# Environments
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.env
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.venv
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env/
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venv/
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ENV/
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env.bak/
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venv.bak/
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# Spyder project settings
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.spyderproject
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.spyproject
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# Rope project settings
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.ropeproject
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# mkdocs documentation
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/site
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# mypy
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.mypy_cache/
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.dmypy.json
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dmypy.json
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# Pyre type checker
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.pyre/
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# IDE
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.vscode/
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.idea/
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*.swp
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*.swo
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*~
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# OS
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.DS_Store
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Thumbs.db

‎python-sdk/ag_ui/__init__.py renamed to ‎typescript-sdk/integrations/langgraph/python/README.md

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‎typescript-sdk/integrations/langgraph/python/ag_ui_langgraph/__init__.py

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from .agent import LangGraphAgent
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from .types import (
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LangGraphEventTypes,
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CustomEventNames,
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State,
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SchemaKeys,
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MessageInProgress,
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RunMetadata,
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MessagesInProgressRecord,
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ToolCall,
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BaseLangGraphPlatformMessage,
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LangGraphPlatformResultMessage,
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LangGraphPlatformActionExecutionMessage,
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LangGraphPlatformMessage,
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PredictStateTool
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)
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from .endpoint import add_langgraph_fastapi_endpoint
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__all__ = [
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"LangGraphAgent",
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"LangGraphEventTypes",
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"CustomEventNames",
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"State",
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"SchemaKeys",
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"MessageInProgress",
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"RunMetadata",
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"MessagesInProgressRecord",
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"ToolCall",
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"BaseLangGraphPlatformMessage",
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"LangGraphPlatformResultMessage",
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"LangGraphPlatformActionExecutionMessage",
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"LangGraphPlatformMessage",
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"PredictStateTool",
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"add_langgraph_fastapi_endpoint"
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]

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