ThreadStateSearch(ThreadStateSearch)

{
    "limit": 10,
    "before": {
        "thread_id": "string",
        "checkpoint_ns": "string",
        "checkpoint_id": "string",
        "checkpoint_map": {}
    },
    "metadata": {},
    "checkpoint": {
        "thread_id": "string",
        "checkpoint_ns": "string",
        "checkpoint_id": "string",
        "checkpoint_map": {}
    }
}