How to use the @nivo/pie.PieDefaultProps.innerRadius function in @nivo/pie

},
    {
        key: 'fit',
        help: `If 'true', pie will be omptimized to occupy more space when using partial pie.`,
        type: 'boolean',
        required: false,
        defaultValue: defaults.fit,
        controlType: 'switch',
        group: 'Base',
    },
    {
        key: 'innerRadius',
        help: `Donut chart if greater than 0. Value should be between 0~1 as it's a ratio from original radius.`,
        type: 'number',
        required: false,
        defaultValue: defaults.innerRadius,
        controlType: 'range',
        group: 'Base',
        controlOptions: {
            min: 0,
            max: 0.95,
            step: 0.05,
        },
    },
    {
        key: 'padAngle',
        help: 'Padding between each pie slice.',
        type: 'number',
        required: false,
        defaultValue: defaults.padAngle,
        controlType: 'range',
        group: 'Base',