How to use server checkpointer

[damonsuen]

I have implemented a graph with a MongoDBSaver checkpointer. I tested the compiled graph and call stream() function, and it used the MongoDBSaver correctly.

However, when I start it as "langgraph dev" and use langgraph_sdk client (get_client()) to call streaming using client.runs.stream function, it is found that the checkpointer is not using the MongoDBSaver checkpointer. It is using langgraph_storage.checkpoint.InMemorySaver instead. Why?