<span class="hljs-function"><span class="hljs-keyword">def</span> <span class="hljs-title">f</span></span>(<span class="hljs-keyword">using</span> x: <span class="hljs-type">Int</span>) = <span class="hljs-number">1</span>
<span class="hljs-function"><span class="hljs-keyword">def</span> <span class="hljs-title">g</span></span>(<span class="hljs-keyword">using</span> <span class="hljs-type">Int</span>) = <span class="hljs-number">1</span>
<span class="hljs-keyword">given</span> (<span class="hljs-keyword">using</span> ev: <span class="hljs-type">Ev</span>): <span class="hljs-type">Foo</span> = ???

<span class="hljs-function"><span class="hljs-keyword">def</span> <span class="hljs-title">expressions</span> </span>=
  f(<span class="hljs-keyword">using</span> <span class="hljs-number">2</span>)

  <span class="hljs-comment">// not `using` keyword</span>
  (using)
  (using )
  ( using )