an><span class="keyword">val</span> field : 
  't 'a. <span><span><span class="type-var">'t</span> <span class="xref-unresolved">Ctypes_static</span>.typ</span> <span class="arrow">&#45;&gt;</span></span>
  <span>string <span class="arrow">&#45;&gt;</span></span>
  <span><span><span class="type-var">'a</span> <span class="xref-unresolved">Ctypes_static</span>.typ</span> <span class="arrow">&#45;&gt;</span></span>
  <span><span>(<span class="type-var">'a</span>, <span class="type-var">'t</span>)</span> <span