><span class="kw"><a href="https://www.rdocumentation.org/packages/base/topics/library">library</a></span>(progress)</a>
<a class="sourceLine" id="cb4-9" data-line-number="9">pb &lt;-<span class="st"> </span>progress_bar<span class="op">$</span><span class="kw">new</span>(<span class="dt">format =</span> <span class="st">"  downloading [:bar] :percent</span><span class="ch">\n</span><span class="st">"</span>,</a>
<a class="sourceLine" id="cb4-10" data-line-number="10">                        <span class="dt