{
const code = html`<pre><code class="python">
from browser import window, document
d3 = window.d3
circles = svg.select("g.circlesGroup")
if (circles.empty()):
circles = svg.append("g")
circles.classed("circlesGroup", True)
def init(ev):
inp = inp0.value
btn0.title = inp + ' - centered'
colorsN = inp.split(',')
</code></pre>`;
highlight.highlightBlock(code.children[0]);
return code;
}