;:&nbsp;<span class="constructor">Timings</span>.compiler_pass&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;(<span class="keywordsign">'</span>a&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;<span class="keywordsign">'</span>b)&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;<span class="keywordsign">'</span>a&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;<span class="keywordsign">'</span>b
&nbsp;&nbsp;<span class="keyword">val</span>&nbsp;print&nbsp;:&nbsp;<span class="constructor">Format</span>