nt documentation">/// This is a doc comment</span>
<span class="attribute_bracket attribute macro proc_macro">#</span><span class="attribute_bracket attribute macro proc_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">Copy</span><span class="parenthesis attribute macro proc_macro">)</span><span class="attribute_bracket attribute macr