an class="Identifier">math</span> <span class="Comment"># everything except private symbols</span>
<span class="Keyword">import</span> <span class="Identifier">foo</span> <span class="Punctuation">{</span><span class="Operator">.</span><span class="Identifier">all</span><span class="Operator">.</span><span class="Punctuation">}</span>  <span class="Comment"># import everything</span>
<span class="Keyword">import</span> <span class="Identifier">std</span><span class="Operator">/</span><span class="Identifier