class="anchor"></a><code><span class="keyword">val</span> externalize : <a href="index.html#type-internal_constr">internal_constr</a> <span>&#45;&gt;</span> <a href="../../../Csp/index.html#type-expr">Csp.expr</a> * <a href="../../../Csp/index.html#type-cmpop">Csp.cmpop</a> * <a href="../../../Csp/index.html#type-expr">Csp.expr</a></code></dt></dl></section></section><section><header><h2 id="constraint-management"><a href="#constraint-management" class="anchor"></a>Constraint management</h2></header><dl><dt