This blank-slate example renders an empty visualization with no data or graphical output, serving as a minimal starting point for a gallery entry. The code imports `select` from D3 and defines a `main` function that accepts a container but performs no operations on it. It relies on the D3 library version 7.8.5 from the bundled dependencies, with the visualization remaining completely blank until further code is added. This demonstrates the basic scaffold required for building interactive charts, where the container is passed but left untouched.