fy the packet by appending new items to it</span><span class="token plain"></span><br></span><span class=token-line style=color:#d6deeb><span class="token plain">packet</span><span class="token punctuation" style="color:rgb(199, 146, 234)">.</span><span class="token plain">append_item</span><span class="token punctuation" style="color:rgb(199, 146, 234)">(</span><span class="token string" style="color:rgb(173, 219, 103)">'NEW_ITEM'</span><span class="token punctuation" style="color:rgb(199, 146, 234)">,</sp