title: How to use method name as an argument
body: <p>I have a method like this</p>
  
  <pre><code>def foo(method_name)
    bars.find{|bar| bar.method_name }
  end
  </code></pre>
  
  <p>The argument <code>method_name</code> is a symbol and a method <code>method_name</code> returns boolean value.</p>
  
  <p>Can I write this method by using <code>&amp;:</code>? 
  I want to write like:</p>
  
  <pre><code>bars.find("&amp;:#{method_name}")
  </code></pre>
  
  <p>But it doesn't work.</p>