macro">[</span><span class="attribute attribute default_library library macro proc_macro">derive</span><span class="parenthesis attribute macro proc_macro">(</span><span class="derive attribute default_library library macro">Default</span><span class="parenthesis attribute macro proc_macro">)</span><span class="attribute_bracket attribute macro proc_macro">]</span>
<span class="comment documentation">/// This is a doc comment</span>
<span class="comment">// This is a normal comment</span>
<span class="comme