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Title: state | langgraph | LangChain Reference

Open Graph Title: state | langgraph

X Title: state | langgraph

Description: Python API reference for graph.state in langgraph. Part of the LangChain ecosystem.

Open Graph Description: Python API reference for graph.state in langgraph. Part of the LangChain ecosystem.

X Description: Python API reference for graph.state in langgraph. Part of the LangChain ecosystem.

Opengraph URL: https://reference.langchain.com/python/langgraph/graph/state

direct link

Domain: reference.langchain.com

og:imagehttps://reference.langchain.com/og/python/langgraph/graph/state
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og:image:height630
og:image:altstate | langgraph
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twitter:imagehttps://reference.langchain.com/og/python/langgraph/graph/state

Links:

LangChain Reference home pagehttps://reference.langchain.com/
GitHubhttps://github.com/langchain-ai
Main Docshttps://docs.langchain.com/oss/python/langgraph
Deep Agentshttps://reference.langchain.com/python/deepagents
LangChainhttps://reference.langchain.com/python/langchain/overview
LangGraphhttps://reference.langchain.com/python/langgraph/overview
Integrationshttps://reference.langchain.com/python/integrations/overview
LangSmithhttps://reference.langchain.com/python/langsmith
Overviewhttps://reference.langchain.com/python/langgraph/overview
Overviewhttps://reference.langchain.com/python/langgraph
Graphshttps://reference.langchain.com/python/langgraph/graphs
Functional APIhttps://reference.langchain.com/python/langgraph/func
Pregelhttps://reference.langchain.com/python/langgraph/pregel
Checkpointinghttps://reference.langchain.com/python/langgraph/checkpoints
Storagehttps://reference.langchain.com/python/langgraph/store
Cachinghttps://reference.langchain.com/python/langgraph/cache
Typeshttps://reference.langchain.com/python/langgraph/types
Runtimehttps://reference.langchain.com/python/langgraph/runtime
Confighttps://reference.langchain.com/python/langgraph/config
Errorshttps://reference.langchain.com/python/langgraph/errors
Constantshttps://reference.langchain.com/python/langgraph/constants
Channelshttps://reference.langchain.com/python/langgraph/channels
Agentshttps://reference.langchain.com/python/langgraph/agents
LangGraph Checkpointhttps://reference.langchain.com/python/langgraph.checkpoint
LangGraph Storehttps://reference.langchain.com/python/langgraph.store
Checkpoint Postgreshttps://reference.langchain.com/python/langgraph.checkpoint.postgres
Store Postgreshttps://reference.langchain.com/python/langgraph.store.postgres
Checkpoint SQLitehttps://reference.langchain.com/python/langgraph.checkpoint.sqlite
LangGraph Prebuilthttps://reference.langchain.com/python/langgraph.prebuilt
LangGraph CLIhttps://reference.langchain.com/python/langgraph-cli
LangGraph SDKhttps://reference.langchain.com/python/langgraph-sdk
LangGraph Supervisorhttps://reference.langchain.com/python/langgraph-supervisor
LangGraph Swarmhttps://reference.langchain.com/python/langgraph-swarm
https://chat.langchain.com/
Overviewhttps://reference.langchain.com/python/langgraph
Graphshttps://reference.langchain.com/python/langgraph/graphs
Functional APIhttps://reference.langchain.com/python/langgraph/func
Pregelhttps://reference.langchain.com/python/langgraph/pregel
Checkpointinghttps://reference.langchain.com/python/langgraph/checkpoints
Storagehttps://reference.langchain.com/python/langgraph/store
Cachinghttps://reference.langchain.com/python/langgraph/cache
Typeshttps://reference.langchain.com/python/langgraph/types
Runtimehttps://reference.langchain.com/python/langgraph/runtime
Confighttps://reference.langchain.com/python/langgraph/config
Errorshttps://reference.langchain.com/python/langgraph/errors
Constantshttps://reference.langchain.com/python/langgraph/constants
Channelshttps://reference.langchain.com/python/langgraph/channels
Agentshttps://reference.langchain.com/python/langgraph/agents
LangGraph Checkpointhttps://reference.langchain.com/python/langgraph.checkpoint
LangGraph Storehttps://reference.langchain.com/python/langgraph.store
Checkpoint Postgreshttps://reference.langchain.com/python/langgraph.checkpoint.postgres
Store Postgreshttps://reference.langchain.com/python/langgraph.store.postgres
Checkpoint SQLitehttps://reference.langchain.com/python/langgraph.checkpoint.sqlite
LangGraph Prebuilthttps://reference.langchain.com/python/langgraph.prebuilt
LangGraph CLIhttps://reference.langchain.com/python/langgraph-cli
LangGraph SDKhttps://reference.langchain.com/python/langgraph-sdk
LangGraph Supervisorhttps://reference.langchain.com/python/langgraph-supervisor
LangGraph Swarmhttps://reference.langchain.com/python/langgraph-swarm
langgraphhttps://reference.langchain.com/python/langgraph
graphhttps://reference.langchain.com/python/langgraph/graph
View source on GitHubhttps://github.com/langchain-ai/langgraph/blob/5bd231cbfd913e05ebc662f519eb9a655bc766df/libs/langgraph/langgraph/graph/state.py
attributeINTERRUPThttps://reference.langchain.com/python/langgraph/_internal/_constants/INTERRUPT
attributeNS_ENDhttps://reference.langchain.com/python/langgraph/_internal/_constants/NS_END
attributeNS_SEPhttps://reference.langchain.com/python/langgraph/_internal/_constants/NS_SEP
attributeTASKShttps://reference.langchain.com/python/langgraph/_internal/_constants/TASKS
attributeEMPTY_SEQ: tuple[str, ...]https://reference.langchain.com/python/langgraph/_internal/_typing/EMPTY_SEQ
attributeMISSINGhttps://reference.langchain.com/python/langgraph/_internal/_typing/MISSING
attributeENDhttps://reference.langchain.com/python/langgraph/constants/END
attributeSTARThttps://reference.langchain.com/python/langgraph/constants/START
attributeTAG_HIDDENhttps://reference.langchain.com/python/langgraph/constants/TAG_HIDDEN
attributeManagedValueSpec: type[ManagedValue]https://reference.langchain.com/python/langgraph/managed/base/ManagedValueSpec
attributeAll: Literal['*']https://reference.langchain.com/python/langgraph/types/All
attributeContextThttps://reference.langchain.com/python/langgraph/typing/ContextT
attributeInputThttps://reference.langchain.com/python/langgraph/typing/InputT
attributeNodeInputThttps://reference.langchain.com/python/langgraph/typing/NodeInputT
attributeOutputThttps://reference.langchain.com/python/langgraph/typing/OutputT
attributeStateThttps://reference.langchain.com/python/langgraph/typing/StateT
attributeloggerhttps://reference.langchain.com/python/langgraph/graph/state/logger
functionget_cached_annotated_keyshttps://reference.langchain.com/python/langgraph/_internal/_fields/get_cached_annotated_keys
functionget_field_defaulthttps://reference.langchain.com/python/langgraph/_internal/_fields/get_field_default
functionget_update_as_tupleshttps://reference.langchain.com/python/langgraph/_internal/_fields/get_update_as_tuples
functioncreate_modelhttps://reference.langchain.com/python/langgraph/_internal/_pydantic/create_model
functioncoerce_to_runnablehttps://reference.langchain.com/python/langgraph/_internal/_runnable/coerce_to_runnable
functioncoerce_timeout_policyhttps://reference.langchain.com/python/langgraph/_internal/_timeout/coerce_timeout_policy
functioncreate_error_messagehttps://reference.langchain.com/python/langgraph/errors/create_error_message
functionis_managed_valuehttps://reference.langchain.com/python/langgraph/managed/base/is_managed_value
functionensure_valid_checkpointerhttps://reference.langchain.com/python/langgraph/types/ensure_valid_checkpointer
classDeprecatedKwargshttps://reference.langchain.com/python/langgraph/_internal/_typing/DeprecatedKwargs
classBaseChannelhttps://reference.langchain.com/python/langgraph/channels/base/BaseChannel
classBinaryOperatorAggregatehttps://reference.langchain.com/python/langgraph/channels/binop/BinaryOperatorAggregate
classDeltaChannelhttps://reference.langchain.com/python/langgraph/channels/delta/DeltaChannel
classEphemeralValuehttps://reference.langchain.com/python/langgraph/channels/ephemeral_value/EphemeralValue
classLastValuehttps://reference.langchain.com/python/langgraph/channels/last_value/LastValue
classLastValueAfterFinishhttps://reference.langchain.com/python/langgraph/channels/last_value/LastValueAfterFinish
classNamedBarrierValuehttps://reference.langchain.com/python/langgraph/channels/named_barrier_value/NamedBarrierValue
classNamedBarrierValueAfterFinishhttps://reference.langchain.com/python/langgraph/channels/named_barrier_value/NamedBarrierValueAfterFinish
classErrorCodehttps://reference.langchain.com/python/langgraph/errors/ErrorCode
classInvalidUpdateErrorhttps://reference.langchain.com/python/langgraph/errors/InvalidUpdateError
classParentCommandhttps://reference.langchain.com/python/langgraph/errors/ParentCommand
classBranchSpechttps://reference.langchain.com/python/langgraph/graph/_branch/BranchSpec
classStateNodeSpechttps://reference.langchain.com/python/langgraph/graph/_node/StateNodeSpec
classPregelhttps://reference.langchain.com/python/langgraph/pregel/main/Pregel
classChannelReadhttps://reference.langchain.com/python/langgraph/pregel/_read/ChannelRead
classPregelNodehttps://reference.langchain.com/python/langgraph/pregel/_read/PregelNode
classChannelWritehttps://reference.langchain.com/python/langgraph/pregel/_write/ChannelWrite
classChannelWriteEntryhttps://reference.langchain.com/python/langgraph/pregel/_write/ChannelWriteEntry
classChannelWriteTupleEntryhttps://reference.langchain.com/python/langgraph/pregel/_write/ChannelWriteTupleEntry
classCachePolicyhttps://reference.langchain.com/python/langgraph/types/CachePolicy
classCommandhttps://reference.langchain.com/python/langgraph/types/Command
classRetryPolicyhttps://reference.langchain.com/python/langgraph/types/RetryPolicy
classSendhttps://reference.langchain.com/python/langgraph/types/Send
classTimeoutPolicyhttps://reference.langchain.com/python/langgraph/types/TimeoutPolicy
classTracePolicyhttps://reference.langchain.com/python/langgraph/types/TracePolicy
classLangGraphDeprecatedSinceV05https://reference.langchain.com/python/langgraph/warnings/LangGraphDeprecatedSinceV05
classLangGraphDeprecatedSinceV10https://reference.langchain.com/python/langgraph/warnings/LangGraphDeprecatedSinceV10
classStateGraphhttps://reference.langchain.com/python/langgraph/graph/state/StateGraph
classCompiledStateGraphhttps://reference.langchain.com/python/langgraph/graph/state/CompiledStateGraph
typeAliasStateNode: TypeAliashttps://reference.langchain.com/python/langgraph/graph/_node/StateNode
typeAliasCheckpointerhttps://reference.langchain.com/python/langgraph/types/Checkpointer
INVALID_CONCURRENT_GRAPH_UPDATEhttps://docs.langchain.com/oss/python/langgraph/INVALID_CONCURRENT_GRAPH_UPDATE
INVALID_GRAPH_NODE_RETURN_VALUEhttps://docs.langchain.com/oss/python/langgraph/INVALID_GRAPH_NODE_RETURN_VALUE
actorshttps://en.wikipedia.org/wiki/Actor_model
StateGraph (Graph API)https://reference.langchain.com/python/langgraph/graph/state/StateGraph
entrypoint (Functional API)https://reference.langchain.com/python/langgraph/func/entrypoint

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