ss="ident">message</span>; <span class="comment">// &lt;--- attachments start with `;` (semicolon)</span>

    <span class="ident">help</span> <span class="op">=</span> <span class="string">&quot;format {} {}&quot;</span>, <span class="string">&quot;arg1&quot;</span>, <span class="string">&quot;arg2&quot;</span>; <span class="comment">// &lt;--- every attachment ends with `;`,</span>
                                           <span class="comment">//      maybe except the last one</span>

    <span class="i