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A LangGraph checkpoint saver backed by a MongoDB database.
class MongoDBSaverBaseCheckpointSaverRetrieves a checkpoint from the MongoDB database based on the provided config. If the config contains a "checkpoint_id" key, the checkpoint with the matching thread ID and checkpoint ID is retrieved. Otherwise, the latest checkpoint for the given thread ID is retrieved.
Retrieve a list of checkpoint tuples from the MongoDB database based on the provided config. The checkpoints are ordered by checkpoint ID in descending order (newest first).
Saves a checkpoint to the MongoDB database. The checkpoint is associated with the provided config and its parent config (if any).
Saves intermediate writes associated with a checkpoint to the MongoDB database.