bsp;:&nbsp;t&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;t<br>
&nbsp;&nbsp;<span class="keyword">val</span>&nbsp;is_symlink&nbsp;:&nbsp;t&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;bool<br>
&nbsp;&nbsp;<span class="keyword">val</span>&nbsp;copy&nbsp;:&nbsp;src:t&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;dst:t&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;unit<br>
&nbsp;&nbsp;<span class="keyword">val</span>&nbsp;link&nbsp;:&nbsp;src:t&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;dst