{"version":"1.0","type":"rich","title":"Test Barchart","description":"A horizontal barchart displays the populations of ten countries, labeled in millions, with a title reading \"A population walks into a bar.\" The visualization loads a CSV file and maps each country’s population to a bar’s width using `scaleLinear` and `scaleBand` for the categorical axis. It renders with D3 v6’s `select`, `csv`, `axisLeft`, and `axisBottom` APIs, drawing SVG rectangles and text elements. Axis labels and tick marks are generated via D3’s axis components, with the chart positioned using explicit margin transforms.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/8cd4994527ed4ac7838b6edf83b7f35f?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}