How to use the @igo2/utils.ObjectUtils.removeDuplicateCaseInsensitive function in @igo2/utils

let dataSource;
    switch (context.type.toLowerCase()) {
      case 'osm':
        dataSource = this.createOSMDataSource(context as OSMDataSourceOptions);
        break;
      case 'vector':
        dataSource = this.createFeatureDataSource(
          context as FeatureDataSourceOptions
        );
        break;
      case 'wfs':
        dataSource = this.createWFSDataSource(context as WFSDataSourceOptions);
        break;
      case 'wms':
        const wmsContext = context as WMSDataSourceOptions;
        ObjectUtils.removeDuplicateCaseInsensitive(wmsContext.params);
        dataSource = this.createWMSDataSource(wmsContext);
        break;
      case 'wmts':
        dataSource = this.createWMTSDataSource(
          context as WMTSDataSourceOptions
        );
        break;
      case 'xyz':
        dataSource = this.createXYZDataSource(context as XYZDataSourceOptions);
        break;
      case 'carto':
        dataSource = this.createCartoDataSource(
          context as CartoDataSourceOptions
        );
        break;
      case 'arcgisrest':