{
    "type": "object",
    "properties": {
        "tx" : { "$ref" : "#/components/schemas/Tx" }
    },
    "components": {
        "schemas": {
            "Tx": {
                "type": "object",
                "properties": {
                    "from": {
                        "allOf": [
                            { "$ref": "#/components/schemas/Pubkey" },
                            { "x-serialization": {
                                "tags": ["ak"]
                            }}
                        ]
                    }
                }
            },
            "Pubkey": {
                "type": "string",
                "x-serialization": {
                    "tags": ["ak", "ct"]
                }
            }
        }
    }
}