e:</p><div class="sample-container"><pre><code class="block lang-kotlin" theme="idea">val number: StrictlyPositiveInt = 1.toStrictlyPositiveInt()<br>    .getOrThrow()<br>val result: StrictlyNegativeInt = -number // or number.unaryMinus()<br>assertEquals(expected = "-1", actual = "$result")</code></pre><span class="top-right-position"><span class="copy-icon"></span><div class="copy-popup-wrapper popup-to-left"><span class="copy-popup-icon"></span><span>Content copied to clipboard</span></div></span></div></d