Untitled

offer = [
    {
        'supplier' : '',
        'contractPerson' : '',
        'purchasingTerm' : '',
        'barge' : '',
        'bunkerSurvey' : '',
        'totalCost' : '',
        'offerAndNegotiation' : [
            {
                'MGO' : [
                    {}, {},
                ],
                'VLSFO' : [
                    {}, {},
                ],
            },
        ]
    },
    {
        'supplier' : '',
        'contractPerson' : '',
        'purchasingTerm' : '',
        'barge' : '',
        'bunkerSurvey' : '',
        'totalCost' : '',
        'offerAndNegotiation' : [
            {
                'MGO' : '',
                'VLSFO' : '',
            },
        ]
    }
]