This example visualizes the top bikes based on cost as a 3D bar chart. The chart displays multi-series bars, comparing each bike's cost and quantity sold in June, using data loaded from a CSV file. It uses the `d3-3d` and `d3-x3d` libraries, which integrate with D3 v5 and the X3D renderer to create the three-dimensional scene. The code defines a `d3.x3d.chart.barChartMultiSeries()` component and populates it with parsed data via the `csv()` function.