encoder/model_spec.json

{
    "in_spec": {
        "type": "tuple",
        "context": null,
        "children": [
            {
                "type": "tuple",
                "context": null,
                "children": [
                    {
                        "type": null,
                        "context": null,
                        "children": []
                    }
                ]
            },
            {
                "type": "dict",
                "context": [],
                "children": []
            }
        ]
    },
    "out_spec": {
        "type": null,
        "context": null,
        "children": []
    }
}