[
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        "activeLeg": 
            {
                "vtSymbol": "m1709",
                "ratio": 1,
                "multiplier": 1.0,
                "payup": 2
            },

        "passiveLegs": [
            {
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                "multiplier": -1.0,
                "payup": 2
            }
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    },

    {
        "name": "IF.07-09",

        "activeLeg": 
            {
                "vtSymbol": "IF1707",
                "ratio": 1,
                "multiplier": 1.0,
                "payup": 2
            },

        "passiveLegs": [
            {
                "vtSymbol": "IF1709",
                "ratio": -1,
                "multiplier": -1.0,
                "payup": 2
            }
        ]
    },

    {
        "name": "IH.07-09",

        "activeLeg": 
            {
                "vtSymbol": "IH1707",
                "ratio": 1,
                "multiplier": 1.0,
                "payup": 2
            },

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        ]
    },

    {
        "name": "IC.07-09",

        "activeLeg": 
            {
                "vtSymbol": "IC1707",
                "ratio": 1,
                "multiplier": 1.0,
                "payup": 2
            },

        "passiveLegs": [
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        ]
    }
]