# langgraph_sdk > Python package 📖 [View in docs](https://reference.langchain.com/python/langgraph-sdk) ## Classes - [`SWRResult`](https://reference.langchain.com/python/langgraph-sdk/cache/SWRResult) - [`LangGraphError`](https://reference.langchain.com/python/langgraph-sdk/errors/LangGraphError) - [`APIError`](https://reference.langchain.com/python/langgraph-sdk/errors/APIError) - [`APIResponseValidationError`](https://reference.langchain.com/python/langgraph-sdk/errors/APIResponseValidationError) - [`APIStatusError`](https://reference.langchain.com/python/langgraph-sdk/errors/APIStatusError) - [`APIConnectionError`](https://reference.langchain.com/python/langgraph-sdk/errors/APIConnectionError) - [`APITimeoutError`](https://reference.langchain.com/python/langgraph-sdk/errors/APITimeoutError) - [`BadRequestError`](https://reference.langchain.com/python/langgraph-sdk/errors/BadRequestError) - [`AuthenticationError`](https://reference.langchain.com/python/langgraph-sdk/errors/AuthenticationError) - [`PermissionDeniedError`](https://reference.langchain.com/python/langgraph-sdk/errors/PermissionDeniedError) - [`NotFoundError`](https://reference.langchain.com/python/langgraph-sdk/errors/NotFoundError) - [`ConflictError`](https://reference.langchain.com/python/langgraph-sdk/errors/ConflictError) - [`UnprocessableEntityError`](https://reference.langchain.com/python/langgraph-sdk/errors/UnprocessableEntityError) - [`RateLimitError`](https://reference.langchain.com/python/langgraph-sdk/errors/RateLimitError) - [`InternalServerError`](https://reference.langchain.com/python/langgraph-sdk/errors/InternalServerError) - [`BytesLineDecoder`](https://reference.langchain.com/python/langgraph-sdk/sse/BytesLineDecoder) - [`SSEDecoder`](https://reference.langchain.com/python/langgraph-sdk/sse/SSEDecoder) - [`LangSmithTracing`](https://reference.langchain.com/python/langgraph-sdk/schema/LangSmithTracing) - [`Config`](https://reference.langchain.com/python/langgraph-sdk/schema/Config) - [`Checkpoint`](https://reference.langchain.com/python/langgraph-sdk/schema/Checkpoint) - [`GraphSchema`](https://reference.langchain.com/python/langgraph-sdk/schema/GraphSchema) - [`AssistantBase`](https://reference.langchain.com/python/langgraph-sdk/schema/AssistantBase) - [`AssistantVersion`](https://reference.langchain.com/python/langgraph-sdk/schema/AssistantVersion) - [`Assistant`](https://reference.langchain.com/python/langgraph-sdk/schema/Assistant) - [`AssistantsSearchResponse`](https://reference.langchain.com/python/langgraph-sdk/schema/AssistantsSearchResponse) - [`Interrupt`](https://reference.langchain.com/python/langgraph-sdk/schema/Interrupt) - [`Thread`](https://reference.langchain.com/python/langgraph-sdk/schema/Thread) - [`ThreadTask`](https://reference.langchain.com/python/langgraph-sdk/schema/ThreadTask) - [`ThreadState`](https://reference.langchain.com/python/langgraph-sdk/schema/ThreadState) - [`ThreadUpdateStateResponse`](https://reference.langchain.com/python/langgraph-sdk/schema/ThreadUpdateStateResponse) - [`Run`](https://reference.langchain.com/python/langgraph-sdk/schema/Run) - [`Cron`](https://reference.langchain.com/python/langgraph-sdk/schema/Cron) - [`CronUpdate`](https://reference.langchain.com/python/langgraph-sdk/schema/CronUpdate) - [`RunCreate`](https://reference.langchain.com/python/langgraph-sdk/schema/RunCreate) - [`Item`](https://reference.langchain.com/python/langgraph-sdk/schema/Item) - [`ListNamespaceResponse`](https://reference.langchain.com/python/langgraph-sdk/schema/ListNamespaceResponse) - [`SearchItem`](https://reference.langchain.com/python/langgraph-sdk/schema/SearchItem) - [`SearchItemsResponse`](https://reference.langchain.com/python/langgraph-sdk/schema/SearchItemsResponse) - [`StreamPart`](https://reference.langchain.com/python/langgraph-sdk/schema/StreamPart) - [`TaskPayload`](https://reference.langchain.com/python/langgraph-sdk/schema/TaskPayload) - [`TaskResultPayload`](https://reference.langchain.com/python/langgraph-sdk/schema/TaskResultPayload) - [`CheckpointTaskPayload`](https://reference.langchain.com/python/langgraph-sdk/schema/CheckpointTaskPayload) - [`CheckpointPayload`](https://reference.langchain.com/python/langgraph-sdk/schema/CheckpointPayload) - [`RunMetadataPayload`](https://reference.langchain.com/python/langgraph-sdk/schema/RunMetadataPayload) - [`ValuesStreamPart`](https://reference.langchain.com/python/langgraph-sdk/schema/ValuesStreamPart) - [`UpdatesStreamPart`](https://reference.langchain.com/python/langgraph-sdk/schema/UpdatesStreamPart) - [`MessagesPartialStreamPart`](https://reference.langchain.com/python/langgraph-sdk/schema/MessagesPartialStreamPart) - [`MessagesCompleteStreamPart`](https://reference.langchain.com/python/langgraph-sdk/schema/MessagesCompleteStreamPart) - [`MessagesMetadataStreamPart`](https://reference.langchain.com/python/langgraph-sdk/schema/MessagesMetadataStreamPart) - [`MessagesTupleStreamPart`](https://reference.langchain.com/python/langgraph-sdk/schema/MessagesTupleStreamPart) - [`CustomStreamPart`](https://reference.langchain.com/python/langgraph-sdk/schema/CustomStreamPart) - [`CheckpointsStreamPart`](https://reference.langchain.com/python/langgraph-sdk/schema/CheckpointsStreamPart) - [`TasksStreamPart`](https://reference.langchain.com/python/langgraph-sdk/schema/TasksStreamPart) - [`DebugStreamPart`](https://reference.langchain.com/python/langgraph-sdk/schema/DebugStreamPart) - [`MetadataStreamPart`](https://reference.langchain.com/python/langgraph-sdk/schema/MetadataStreamPart) - [`Send`](https://reference.langchain.com/python/langgraph-sdk/schema/Send) - [`Command`](https://reference.langchain.com/python/langgraph-sdk/schema/Command) - [`RunCreateMetadata`](https://reference.langchain.com/python/langgraph-sdk/schema/RunCreateMetadata) - [`LangGraphBetaWarning`](https://reference.langchain.com/python/langgraph-sdk/encryption/LangGraphBetaWarning) - [`DuplicateHandlerError`](https://reference.langchain.com/python/langgraph-sdk/encryption/DuplicateHandlerError) - [`Encryption`](https://reference.langchain.com/python/langgraph-sdk/encryption/Encryption) - [`EncryptionContext`](https://reference.langchain.com/python/langgraph-sdk/encryption/types/EncryptionContext) - [`SyncCronClient`](https://reference.langchain.com/python/langgraph-sdk/_sync/cron/SyncCronClient) - [`SyncStoreClient`](https://reference.langchain.com/python/langgraph-sdk/_sync/store/SyncStoreClient) - [`SyncLangGraphClient`](https://reference.langchain.com/python/langgraph-sdk/_sync/client/SyncLangGraphClient) - [`SyncThreadsClient`](https://reference.langchain.com/python/langgraph-sdk/_sync/threads/SyncThreadsClient) - [`SyncAssistantsClient`](https://reference.langchain.com/python/langgraph-sdk/_sync/assistants/SyncAssistantsClient) - [`SyncHttpClient`](https://reference.langchain.com/python/langgraph-sdk/_sync/http/SyncHttpClient) - [`SyncRunsClient`](https://reference.langchain.com/python/langgraph-sdk/_sync/runs/SyncRunsClient) - [`Auth`](https://reference.langchain.com/python/langgraph-sdk/auth/Auth) - [`MinimalUser`](https://reference.langchain.com/python/langgraph-sdk/auth/types/MinimalUser) - [`MinimalUserDict`](https://reference.langchain.com/python/langgraph-sdk/auth/types/MinimalUserDict) - [`BaseUser`](https://reference.langchain.com/python/langgraph-sdk/auth/types/BaseUser) - [`StudioUser`](https://reference.langchain.com/python/langgraph-sdk/auth/types/StudioUser) - [`BaseAuthContext`](https://reference.langchain.com/python/langgraph-sdk/auth/types/BaseAuthContext) - [`AuthContext`](https://reference.langchain.com/python/langgraph-sdk/auth/types/AuthContext) - [`ThreadTTL`](https://reference.langchain.com/python/langgraph-sdk/auth/types/ThreadTTL) - [`ThreadsCreate`](https://reference.langchain.com/python/langgraph-sdk/auth/types/ThreadsCreate) - [`ThreadsRead`](https://reference.langchain.com/python/langgraph-sdk/auth/types/ThreadsRead) - [`ThreadsUpdate`](https://reference.langchain.com/python/langgraph-sdk/auth/types/ThreadsUpdate) - [`ThreadsDelete`](https://reference.langchain.com/python/langgraph-sdk/auth/types/ThreadsDelete) - [`ThreadsSearch`](https://reference.langchain.com/python/langgraph-sdk/auth/types/ThreadsSearch) - [`RunsCreate`](https://reference.langchain.com/python/langgraph-sdk/auth/types/RunsCreate) - [`AssistantsCreate`](https://reference.langchain.com/python/langgraph-sdk/auth/types/AssistantsCreate) - [`AssistantsRead`](https://reference.langchain.com/python/langgraph-sdk/auth/types/AssistantsRead) - [`AssistantsUpdate`](https://reference.langchain.com/python/langgraph-sdk/auth/types/AssistantsUpdate) - [`AssistantsDelete`](https://reference.langchain.com/python/langgraph-sdk/auth/types/AssistantsDelete) - [`AssistantsSearch`](https://reference.langchain.com/python/langgraph-sdk/auth/types/AssistantsSearch) - [`CronsCreate`](https://reference.langchain.com/python/langgraph-sdk/auth/types/CronsCreate) - [`CronsDelete`](https://reference.langchain.com/python/langgraph-sdk/auth/types/CronsDelete) - [`CronsRead`](https://reference.langchain.com/python/langgraph-sdk/auth/types/CronsRead) - [`CronsUpdate`](https://reference.langchain.com/python/langgraph-sdk/auth/types/CronsUpdate) - [`CronsSearch`](https://reference.langchain.com/python/langgraph-sdk/auth/types/CronsSearch) - [`StoreGet`](https://reference.langchain.com/python/langgraph-sdk/auth/types/StoreGet) - [`StoreSearch`](https://reference.langchain.com/python/langgraph-sdk/auth/types/StoreSearch) - [`StoreListNamespaces`](https://reference.langchain.com/python/langgraph-sdk/auth/types/StoreListNamespaces) - [`StorePut`](https://reference.langchain.com/python/langgraph-sdk/auth/types/StorePut) - [`StoreDelete`](https://reference.langchain.com/python/langgraph-sdk/auth/types/StoreDelete) - [`on`](https://reference.langchain.com/python/langgraph-sdk/auth/types/on) - [`threads`](https://reference.langchain.com/python/langgraph-sdk/auth/types/on/threads) - [`create`](https://reference.langchain.com/python/langgraph-sdk/auth/types/on/threads/create) - [`create_run`](https://reference.langchain.com/python/langgraph-sdk/auth/types/on/threads/create_run) - [`read`](https://reference.langchain.com/python/langgraph-sdk/auth/types/on/threads/read) - [`update`](https://reference.langchain.com/python/langgraph-sdk/auth/types/on/threads/update) - [`delete`](https://reference.langchain.com/python/langgraph-sdk/auth/types/on/threads/delete) - [`search`](https://reference.langchain.com/python/langgraph-sdk/auth/types/on/threads/search) - [`assistants`](https://reference.langchain.com/python/langgraph-sdk/auth/types/on/assistants) - [`create`](https://reference.langchain.com/python/langgraph-sdk/auth/types/on/assistants/create) - [`read`](https://reference.langchain.com/python/langgraph-sdk/auth/types/on/assistants/read) - [`update`](https://reference.langchain.com/python/langgraph-sdk/auth/types/on/assistants/update) - [`delete`](https://reference.langchain.com/python/langgraph-sdk/auth/types/on/assistants/delete) - [`search`](https://reference.langchain.com/python/langgraph-sdk/auth/types/on/assistants/search) - [`crons`](https://reference.langchain.com/python/langgraph-sdk/auth/types/on/crons) - [`create`](https://reference.langchain.com/python/langgraph-sdk/auth/types/on/crons/create) - [`read`](https://reference.langchain.com/python/langgraph-sdk/auth/types/on/crons/read) - [`update`](https://reference.langchain.com/python/langgraph-sdk/auth/types/on/crons/update) - [`delete`](https://reference.langchain.com/python/langgraph-sdk/auth/types/on/crons/delete) - [`search`](https://reference.langchain.com/python/langgraph-sdk/auth/types/on/crons/search) - [`store`](https://reference.langchain.com/python/langgraph-sdk/auth/types/on/store) - [`put`](https://reference.langchain.com/python/langgraph-sdk/auth/types/on/store/put) - [`get`](https://reference.langchain.com/python/langgraph-sdk/auth/types/on/store/get) - [`search`](https://reference.langchain.com/python/langgraph-sdk/auth/types/on/store/search) - [`delete`](https://reference.langchain.com/python/langgraph-sdk/auth/types/on/store/delete) - [`list_namespaces`](https://reference.langchain.com/python/langgraph-sdk/auth/types/on/store/list_namespaces) - [`HTTPException`](https://reference.langchain.com/python/langgraph-sdk/auth/exceptions/HTTPException) - [`CronClient`](https://reference.langchain.com/python/langgraph-sdk/_async/cron/CronClient) - [`StoreClient`](https://reference.langchain.com/python/langgraph-sdk/_async/store/StoreClient) - [`LangGraphClient`](https://reference.langchain.com/python/langgraph-sdk/_async/client/LangGraphClient) - [`ThreadsClient`](https://reference.langchain.com/python/langgraph-sdk/_async/threads/ThreadsClient) - [`AssistantsClient`](https://reference.langchain.com/python/langgraph-sdk/_async/assistants/AssistantsClient) - [`HttpClient`](https://reference.langchain.com/python/langgraph-sdk/_async/http/HttpClient) - [`RunsClient`](https://reference.langchain.com/python/langgraph-sdk/_async/runs/RunsClient) ## Functions - [`cache_get()`](https://reference.langchain.com/python/langgraph-sdk/cache/cache_get) - [`cache_set()`](https://reference.langchain.com/python/langgraph-sdk/cache/cache_set) - [`swr()`](https://reference.langchain.com/python/langgraph-sdk/cache/swr) - [`aiter_lines_raw()`](https://reference.langchain.com/python/langgraph-sdk/sse/aiter_lines_raw) - [`iter_lines_raw()`](https://reference.langchain.com/python/langgraph-sdk/sse/iter_lines_raw) - [`get_sync_client()`](https://reference.langchain.com/python/langgraph-sdk/_sync/client/get_sync_client) - [`is_studio_user()`](https://reference.langchain.com/python/langgraph-sdk/auth/is_studio_user) - [`get_client()`](https://reference.langchain.com/python/langgraph-sdk/_async/client/get_client) - [`configure_loopback_transports()`](https://reference.langchain.com/python/langgraph-sdk/_shared/utilities/configure_loopback_transports) - [`get_asgi_transport()`](https://reference.langchain.com/python/langgraph-sdk/_shared/utilities/get_asgi_transport) ## Types - [`BytesLike`](https://reference.langchain.com/python/langgraph-sdk/sse/BytesLike) - [`Json`](https://reference.langchain.com/python/langgraph-sdk/schema/Json) - [`PrimitiveData`](https://reference.langchain.com/python/langgraph-sdk/schema/PrimitiveData) - [`QueryParamTypes`](https://reference.langchain.com/python/langgraph-sdk/schema/QueryParamTypes) - [`DebugPayload`](https://reference.langchain.com/python/langgraph-sdk/schema/DebugPayload) - [`StreamPartV2`](https://reference.langchain.com/python/langgraph-sdk/schema/StreamPartV2) - [`Input`](https://reference.langchain.com/python/langgraph-sdk/schema/Input) - [`Context`](https://reference.langchain.com/python/langgraph-sdk/schema/Context) - [`FilterType`](https://reference.langchain.com/python/langgraph-sdk/auth/types/FilterType) - [`HandlerResult`](https://reference.langchain.com/python/langgraph-sdk/auth/types/HandlerResult) - [`TimeoutTypes`](https://reference.langchain.com/python/langgraph-sdk/_shared/types/TimeoutTypes)