How to use the reactxp.Platform function in reactxp

Down = 1
}

const _styles = {
    scrollContainer: RX.Styles.createScrollViewStyle({
        flex: 1,
        position: 'relative',
        flexDirection: 'column'
    }),
    staticContainer: RX.Styles.createViewStyle({
        flex: 1,
        flexDirection: 'column'
    })
};

const _isNativeAndroid = RX.Platform.getType() === 'android';
const _isNativeIOS = RX.Platform.getType() === 'ios';
const _isNativeMacOs = RX.Platform.getType() === 'macos';
const _isWeb = RX.Platform.getType() === 'web';

// How many items with unknown heights will we allow? A larger value will fill the view more
// quickly but will result in a bunch of long-running work that can cause frame skips during
// animations.
const _maxSimultaneousMeasures = 16;

// Recycled cells remain mounted to reduce the allocations and deallocations.
// This value controls how many we maintain before culling.
const _maxRecycledCells = 50;

const _maxRecycledCellsForAccessibility = 0;

const _virtualKeyPrefix = 'vc_';

renderItem: (details: VirtualListCellRenderDetails) => JSX.Element | JSX.Element[];
}

const _styles = {
    cellView: RX.Styles.createViewStyle({
        position: 'absolute'
    }),
    overflowVisible: RX.Styles.createViewStyle({
        overflow: 'visible'
    }),
    overflowHidden: RX.Styles.createViewStyle({
        overflow: 'hidden'
    })
};

const _isNativeMacOS = RX.Platform.getType() === 'macos';
const _skypeEaseInAnimationCurve = RX.Animated.Easing.CubicBezier(1, 0, 0.78, 1);
const _skypeEaseOutAnimationCurve = RX.Animated.Easing.CubicBezier(0.33, 0, 0, 1);
const _keyCodeEnter = 13;
const _keyCodeSpace = 32;
const _keyCodeReturn = 3;

export class VirtualListCell extends RX.Component, RX.Stateless> {
    // Helper class used to render child elements. If we know that none of the children changed - we would like to skip
    // the render completely, to improve performance.
    private static StaticRenderer = class  extends
            RX.Component, RX.Stateless> {
        constructor(props: StaticRendererProps) {
            super(props);
        }

        shouldComponentUpdate(nextProps: StaticRendererProps): boolean {