How to use the @nivo/calendar.CalendarDefaultProps.monthLegendPosition function in @nivo/calendar

controlType: 'colorPicker',
        group: 'Months',
    },
    {
        key: 'monthLegend',
        help: `can be used to customize months label, returns abbreviated month name (english) by default. This can be used to use a different language`,
        type: '(year: number, month: number, date: Date) => string | number',
        required: false,
        group: 'Months',
    },
    {
        key: 'monthLegendPosition',
        help: 'defines month legends position.',
        type: `'before' | 'after'`,
        required: false,
        defaultValue: defaults.monthLegendPosition,
        controlType: 'radio',
        group: 'Months',
        controlOptions: {
            choices: [
                { label: 'before', value: 'before' },
                { label: 'after', value: 'after' },
            ],
        },
    },
    {
        key: 'monthLegendOffset',
        help: 'define offset from month edge to its label.',
        type: 'number',
        required: false,
        defaultValue: defaults.monthLegendOffset,
        controlType: 'range',