{
    "scale_in_and_out_tidb": {
        "description": "scale_in_and_out_tidb",
        "steps": [
            "create a cluster where displayName matches 'llm-e2e-cluster-[a-zA-Z0-9]{4}' with 1 TiDB(2C8G) node, 3 TiKV(2C8G,200G) nodes and no TiFlash",
            "scale out the cluster to 2C8G 2 TiDB nodes",
            "scale in this cluster to 2C8G 1 TiDB node",
            "delete this cluster"
        ]
    }
}