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    Pythonlanggraph.checkpointbaseCheckpointversions_seen
    Attribute●Since v1.0

    versions_seen

    Map from node ID to map from channel name to version seen.

    This keeps track of the versions of the channels that each node has seen. Used to determine which nodes to execute next.

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    versions_seen: dict[str, ChannelVersions]
    View source on GitHub