="Permalink to this definition"></a></dt>
<dd><p>Perform <em>if_</em> if called in mode <em>target_mode</em>, else perform <em>else_</em>.</p>
<p>Example:</p>
<div class="doctest highlight-default notranslate"><div class="highlight"><pre><span></span><span class="gp">&gt;&gt;&gt; </span><span class="kn">from</span> <span class="nn">padl</span> <span class="kn">import</span> <span class="n">transform</span>
<span class="gp">&gt;&gt;&gt; </span><span class="n">a</span> <span class="o">=</span> <span class=