span class="exception">Illegal_expr</span></span></code></div></div><div class="odoc-spec"><div class="spec value anchored" id="val-test_ops"><a href="#val-test_ops" class="anchor"></a><code><span><span class="keyword">val</span> test_ops : <span><span>(string * <span>(<span><a href="#type-value">value</a> <span class="arrow">&#45;&gt;</span></span> <span><a href="#type-value">value</a> <span class="arrow">&#45;&gt;</span></span> bool)</span>)</span> list</span></span></code></div><div class="spec-doc"><p>n