i have a project that's using durable

"durable_objects": {
    "bindings": [
        {
            "name": "DO_1",
            "class_name": "FirstDurableObjectClassV2"
        },
        {
            "name": "DO_2",
            "class_name": "SecondDurableObjectClassV2"
        },
    ]
},
"migrations": [
    {
        "tag": "v1",
        "new_sqlite_classes": [
            "FirstDurableObject",
            "SecondDurableObject",
        ],
    },
    {
        "tag": "v2",
        "transferred_classes": [
            {
                "from": "FirstDurableObjectClass",
                "from_script": "old-script",
                "to": "FirstDurableObjectClassV2"
            },
            {
                "from": "SecondDurableObjectClass",
                "from_script": "old-script",
                "to": "SecondDurableObjectClassV2"
            },
        ]
    }
]