release(langgraph): v1 working branch #6093
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* Bump version of langgraph to v1.0.0a1 * Bump version of prebuilt to v0.7.0a1 * Fix tests w/ new langchain-core alpha version * Bump min supported python version Deprecating prebuilts tools w/ helpful IDE hinting + deprecation messages. --------- Co-authored-by: ccurme <chester.curme@gmail.com>
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sydney-runkle
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Right now we include configuration as metadata (which is later passed to tracing callbacks). Right now we include any key that doesn't have a dunder prefix and whose value is a string or int. This PR proposes to also exclude keys with certain substrings (key, secret, token). I would also be in favor of dropping support for forwarding configurable values to metadata entirely, but this is a smaller, less controversial change. Add a test.
Raised by @jacoblee93, the following was raising a cryptic deprecation warning: ```py import pytest from langchain_core.language_models import FakeListChatModel from langchain.agents import create_agent @pytest.fixture def test_llm(): return FakeListChatModel(responses=["Hello from test agent!"]) @pytest.fixture def simple_agent(test_llm): return create_agent( model=test_llm, tools=[], prompt="You are a helpful assistant." ) def test_basic_agent_execution(simple_agent): result = simple_agent.invoke({"messages": [{"role": "user", "content": "hi"}]}) assert len(result["messages"]) == 2 assert result["messages"][1].content == "Hello from test agent!" ``` ``` <frozen abc>:106 <frozen abc>:106: LangGraphDeprecatedSinceV10: AgentStatePydantic has been moved to langchain.agents. Please update your import to 'from langchain.agents import AgentStatePydantic'. Deprecated in LangGraph V1.0 to be removed in V2.0. -- Docs: https://docs.pytest.org/en/stable/how-to/capture-warnings.html ``` This fixes that issue. I don't actually think we should re-expose these new states in `langchain.agents` given that middleware agents don't use them. Need to make a call on that.
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