This example visualizes a small dataset of two categories, "Reclamantes" and "Fases Processuais," as colored bubbles whose sizes reflect their respective counts. Using the D3.js library (v5) within a React framework, the code applies `d3.pack` for circle packing and `d3.hierarchy` to structure the data. The resulting SVG is rendered into an HTML page, with each bubble labeled and interactive via click events.