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fix(llmobs): fix span linking for langgraph nodes (#13423)
Fix for `langgraph>=0.3.22`. This includes expanding our testing range for `langgraph`, and it was determined we support as low as `langgraph==0.2.23`. Most LOC are from riot requirements fixes. Below is some additional context for how we do span linking/fix span linking for LangGraph. There are two other small fixes: 1. Subgraph detection was previously done by checking node names (`"LangGraph"` equality). Since (sub)graphs can be names, this is not viable, and instead we opt for an instance check. 2. For using the `Command` ([ref](https://blog.langchain.dev/command-a-new-tool-for-multi-agent-architectures-in-langgraph/)) and `goto` features in LangGraph will throw a `ParentCommand` exception to communicate to the parent graph. This is not a true error, so any instances of this error should not be tagged as such. MLOB-2774 ## Checklist - [x] PR author has checked that all the criteria below are met - The PR description includes an overview of the change - The PR description articulates the motivation for the change - The change includes tests OR the PR description describes a testing strategy - The PR description notes risks associated with the change, if any - Newly-added code is easy to change - The change follows the [library release note guidelines](https://ddtrace.readthedocs.io/en/stable/releasenotes.html) - The change includes or references documentation updates if necessary - Backport labels are set (if [applicable](https://ddtrace.readthedocs.io/en/latest/contributing.html#backporting)) ## Reviewer Checklist - [x] Reviewer has checked that all the criteria below are met - Title is accurate - All changes are related to the pull request's stated goal - Avoids breaking [API](https://ddtrace.readthedocs.io/en/stable/versioning.html#interfaces) changes - Testing strategy adequately addresses listed risks - Newly-added code is easy to change - Release note makes sense to a user of the library - If necessary, author has acknowledged and discussed the performance implications of this PR as reported in the benchmarks PR comment - Backport labels are set in a manner that is consistent with the [release branch maintenance policy](https://ddtrace.readthedocs.io/en/latest/contributing.html#backporting)
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‎.riot/requirements/11029c2.txt

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#
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# This file is autogenerated by pip-compile with Python 3.12
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# by the following command:
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#
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# pip-compile --no-annotate .riot/requirements/11029c2.in
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#
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annotated-types==0.7.0
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anyio==4.9.0
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attrs==25.3.0
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certifi==2025.4.26
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charset-normalizer==3.4.2
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coverage[toml]==7.8.0
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h11==0.16.0
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httpcore==1.0.9
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httpx==0.28.1
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hypothesis==6.45.0
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idna==3.10
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iniconfig==2.1.0
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jsonpatch==1.33
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jsonpointer==3.0.0
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langchain-core==0.3.59
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langgraph==0.3.22
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langgraph-checkpoint==2.0.25
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langgraph-prebuilt==0.1.8
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langgraph-sdk==0.1.69
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langsmith==0.3.42
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mock==5.2.0
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opentracing==2.4.0
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orjson==3.10.18
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ormsgpack==1.9.1
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packaging==24.2
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pluggy==1.5.0
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pydantic==2.11.4
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pydantic-core==2.33.2
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pytest==8.3.5
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pytest-asyncio==0.26.0
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pytest-cov==6.1.1
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pytest-mock==3.14.0
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pyyaml==6.0.2
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requests==2.32.3
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requests-toolbelt==1.0.0
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sniffio==1.3.1
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sortedcontainers==2.4.0
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tenacity==9.1.2
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typing-extensions==4.13.2
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typing-inspection==0.4.0
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urllib3==2.4.0
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xxhash==3.5.0
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zstandard==0.23.0

‎.riot/requirements/115283d.txt

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‎.riot/requirements/125dc45.txt

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#
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# This file is autogenerated by pip-compile with Python 3.9
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# by the following command:
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#
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# pip-compile --no-annotate .riot/requirements/125dc45.in
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#
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annotated-types==0.7.0
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anyio==4.9.0
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attrs==25.3.0
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certifi==2025.4.26
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charset-normalizer==3.4.2
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coverage[toml]==7.8.0
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exceptiongroup==1.3.0
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h11==0.16.0
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httpcore==1.0.9
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httpx==0.28.1
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hypothesis==6.45.0
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idna==3.10
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iniconfig==2.1.0
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jsonpatch==1.33
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jsonpointer==3.0.0
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langchain-core==0.3.59
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langgraph==0.3.21
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langgraph-checkpoint==2.0.25
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langgraph-prebuilt==0.1.8
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langgraph-sdk==0.1.69
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langsmith==0.3.42
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mock==5.2.0
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opentracing==2.4.0
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orjson==3.10.18
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ormsgpack==1.9.1
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packaging==24.2
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pluggy==1.5.0
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pydantic==2.11.4
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pydantic-core==2.33.2
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pytest==8.3.5
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pytest-asyncio==0.26.0
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pytest-cov==6.1.1
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pytest-mock==3.14.0
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pyyaml==6.0.2
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requests==2.32.3
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requests-toolbelt==1.0.0
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sniffio==1.3.1
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sortedcontainers==2.4.0
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tenacity==9.1.2
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tomli==2.2.1
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typing-extensions==4.13.2
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typing-inspection==0.4.0
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urllib3==2.4.0
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xxhash==3.5.0
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zstandard==0.23.0

‎.riot/requirements/158a309.txt

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#
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# This file is autogenerated by pip-compile with Python 3.11
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# by the following command:
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#
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# pip-compile --no-annotate .riot/requirements/158a309.in
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#
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annotated-types==0.7.0
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anyio==4.9.0
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attrs==25.3.0
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certifi==2025.4.26
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charset-normalizer==3.4.2
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coverage[toml]==7.8.0
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h11==0.16.0
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httpcore==1.0.9
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httpx==0.28.1
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hypothesis==6.45.0
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idna==3.10
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iniconfig==2.1.0
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jsonpatch==1.33
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jsonpointer==3.0.0
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langchain-core==0.3.59
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langgraph==0.3.21
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langgraph-checkpoint==2.0.25
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langgraph-prebuilt==0.1.8
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langgraph-sdk==0.1.69
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langsmith==0.3.42
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mock==5.2.0
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opentracing==2.4.0
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orjson==3.10.18
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ormsgpack==1.9.1
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packaging==24.2
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pluggy==1.5.0
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pydantic==2.11.4
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pydantic-core==2.33.2
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pytest==8.3.5
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pytest-asyncio==0.26.0
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pytest-cov==6.1.1
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pytest-mock==3.14.0
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pyyaml==6.0.2
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requests==2.32.3
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requests-toolbelt==1.0.0
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sniffio==1.3.1
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sortedcontainers==2.4.0
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tenacity==9.1.2
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typing-extensions==4.13.2
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typing-inspection==0.4.0
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urllib3==2.4.0
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xxhash==3.5.0
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zstandard==0.23.0

‎.riot/requirements/1775c38.txt

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#
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# This file is autogenerated by pip-compile with Python 3.11
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# by the following command:
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#
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# pip-compile --no-annotate .riot/requirements/1775c38.in
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#
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annotated-types==0.7.0
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anyio==4.9.0
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attrs==25.3.0
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certifi==2025.4.26
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charset-normalizer==3.4.2
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coverage[toml]==7.8.0
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h11==0.16.0
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httpcore==1.0.9
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httpx==0.28.1
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hypothesis==6.45.0
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idna==3.10
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iniconfig==2.1.0
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jsonpatch==1.33
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jsonpointer==3.0.0
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langchain-core==0.3.59
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langgraph==0.2.23
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langgraph-checkpoint==1.0.12
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langsmith==0.3.42
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mock==5.2.0
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msgpack==1.1.0
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opentracing==2.4.0
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orjson==3.10.18
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packaging==24.2
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pluggy==1.5.0
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pydantic==2.11.4
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pydantic-core==2.33.2
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pytest==8.3.5
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pytest-asyncio==0.26.0
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pytest-cov==6.1.1
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pytest-mock==3.14.0
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pyyaml==6.0.2
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requests==2.32.3
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requests-toolbelt==1.0.0
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sniffio==1.3.1
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sortedcontainers==2.4.0
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tenacity==9.1.2
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typing-extensions==4.13.2
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typing-inspection==0.4.0
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urllib3==2.4.0
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zstandard==0.23.0

‎.riot/requirements/18551a1.txt

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‎.riot/requirements/18eaa2d.txt

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#
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# This file is autogenerated by pip-compile with Python 3.9
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# by the following command:
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#
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# pip-compile --no-annotate .riot/requirements/18eaa2d.in
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#
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annotated-types==0.7.0
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anyio==4.9.0
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attrs==25.3.0
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certifi==2025.4.26
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charset-normalizer==3.4.2
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coverage[toml]==7.8.0
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exceptiongroup==1.3.0
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h11==0.16.0
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httpcore==1.0.9
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httpx==0.28.1
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hypothesis==6.45.0
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idna==3.10
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iniconfig==2.1.0
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jsonpatch==1.33
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jsonpointer==3.0.0
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langchain-core==0.3.59
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langgraph==0.4.3
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langgraph-checkpoint==2.0.25
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langgraph-prebuilt==0.1.8
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langgraph-sdk==0.1.69
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langsmith==0.3.42
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mock==5.2.0
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opentracing==2.4.0
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orjson==3.10.18
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ormsgpack==1.9.1
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packaging==24.2
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pluggy==1.5.0
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pydantic==2.11.4
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pydantic-core==2.33.2
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pytest==8.3.5
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pytest-asyncio==0.26.0
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pytest-cov==6.1.1
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pytest-mock==3.14.0
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pyyaml==6.0.2
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requests==2.32.3
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requests-toolbelt==1.0.0
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sniffio==1.3.1
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sortedcontainers==2.4.0
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tenacity==9.1.2
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tomli==2.2.1
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typing-extensions==4.13.2
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typing-inspection==0.4.0
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urllib3==2.4.0
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xxhash==3.5.0
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zstandard==0.23.0

‎.riot/requirements/1d59ef9.txt

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#
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# This file is autogenerated by pip-compile with Python 3.13
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# by the following command:
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#
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# pip-compile --no-annotate .riot/requirements/1d59ef9.in
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#
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annotated-types==0.7.0
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anyio==4.9.0
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attrs==25.3.0
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certifi==2025.4.26
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charset-normalizer==3.4.2
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coverage[toml]==7.8.0
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h11==0.16.0
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httpcore==1.0.9
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httpx==0.28.1
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hypothesis==6.45.0
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idna==3.10
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iniconfig==2.1.0
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jsonpatch==1.33
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jsonpointer==3.0.0
21+
langchain-core==0.3.59
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langgraph==0.2.23
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langgraph-checkpoint==1.0.12
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langsmith==0.3.42
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mock==5.2.0
26+
msgpack==1.1.0
27+
opentracing==2.4.0
28+
orjson==3.10.18
29+
packaging==24.2
30+
pluggy==1.5.0
31+
pydantic==2.11.4
32+
pydantic-core==2.33.2
33+
pytest==8.3.5
34+
pytest-asyncio==0.26.0
35+
pytest-cov==6.1.1
36+
pytest-mock==3.14.0
37+
pyyaml==6.0.2
38+
requests==2.32.3
39+
requests-toolbelt==1.0.0
40+
sniffio==1.3.1
41+
sortedcontainers==2.4.0
42+
tenacity==9.1.2
43+
typing-extensions==4.13.2
44+
typing-inspection==0.4.0
45+
urllib3==2.4.0
46+
zstandard==0.23.0

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