x.html#type-t">IR.JavaClassName.t</a> <span class="arrow">&#45;&gt;</span></span>
  <span>expected_package:<span>string option</span> <span class="arrow">&#45;&gt;</span></span>
  <span>expected_classname:string <span class="arrow">&#45;&gt;</span></span>
  unit</span></code></div></div><div class="odoc-spec"><div class="spec value anchored" id="val-assert_some"><a href="#val-assert_some" class="anchor"></a><code><span><span class="keyword">val</span> assert_some : <span><span><span class="type-var">'a</spa