How to use the @nivo/line.LineDefaultProps.lineWidth function in @nivo/line

},
    {
        key: 'colors',
        help: 'Defines color range.',
        type: 'string | Function | string[]',
        required: false,
        defaultValue: defaults.colors,
        controlType: 'ordinalColors',
        group: 'Style',
    },
    {
        key: 'lineWidth',
        help: 'Line width.',
        type: 'number',
        required: false,
        defaultValue: defaults.lineWidth,
        controlType: 'lineWidth',
        group: 'Style',
    },
    {
        key: 'enableArea',
        help: 'Enable/disable area below each line.',
        type: 'boolean',
        required: false,
        defaultValue: defaults.enableArea,
        controlType: 'switch',
        group: 'Style',
    },
    {
        key: 'areaBaselineValue',
        help: 'Define the value to be used for area baseline.',
        description: `