">Seq</span>.t&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;<span class="constructor">String</span>.t<br>
&nbsp;&nbsp;<span class="keyword">external</span>&nbsp;unsafe_get&nbsp;:&nbsp;string&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;int&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;char&nbsp;=&nbsp;<span class="string">"%string_unsafe_get"</span><br>
&nbsp;&nbsp;<span class="keyword">external</span>&nbsp;unsafe_set&nbsp;:&nbsp;bytes&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;int&nbsp;<sp