How to use the @mapbox/mapbox-gl-style-spec.latest.$root function in @mapbox/mapbox-gl-style-spec

render() {
    const metadata = this.props.mapStyle.metadata || {}
    const {onChangeMetadataProperty, mapStyle} = this.props;
    const inputProps = { }

    const light = this.props.mapStyle.light || {};
    const transition = this.props.mapStyle.transition || {};

    return 
      <div style="{{minWidth:">
      
        
      
      
        
      
      
        </div>