./../../../syguslib-utils/Syguslib/Sygus/index.html#type-solver_response">Syguslib.Sygus.solver_response</a> <span class="xref-unresolved">Base</span>.option</span> <span class="xref-unresolved">Lwt</span>.t</span> * <span><span class="xref-unresolved">Base</span>.int <span class="xref-unresolved">Lwt</span>.u</span></span></code></div></div><div class="odoc-spec"><div class="spec value" id="val-to_file" class="anchored"><a href="#val-to_file" class="anchor"></a><code><span><span class="keyword">val</span> 