v><div class="spec-doc"><p>Semantics of builder's final build method</p></div></div><div class="odoc-spec"><div class="spec value anchored" id="val-call_return"><a href="#val-call_return" class="anchor"></a><code><span><span class="keyword">val</span> call_return : <span><a href="#type-t">t</a> <span class="arrow">&#45;&gt;</span></span> <a href="#type-t">t</a></span></code></div><div class="spec-doc"><p>Semantics of return method</p></div></div><div class="odoc-spec"><div class="spec value anchored" id="va