class="fu">heapsofpapers</span><span class="fu">::</span><span class="fu"><a href="../reference/check_for_existence.html">check_for_existence</a></span><span class="op">(</span>data <span class="op">=</span> <span class="va">two_pdfs</span>, 
                                   save_names <span class="op">=</span> <span class="st">"save_here"</span><span class="op">)</span></code></pre></div>
<p>If you already have some of the files then <code><a href="../reference/get_and_save.html">heapsofpapers::get_and_s