title: How to hide a label in Rails form(Haml)?
body: <p>I have a bit of form:</p>
  
  <pre><code>  = f.label :option_1, "title"
    = f.check_box :option_1
  </code></pre>
  
  <p>And this is render:</p>
  
  <p><img src="https://i.imgur.com/MaWZPOQ.jpg" alt="img">
  <img src="https://i.imgur.com/L2TM1U1.jpg" alt="img">
  How can I remove "<strong>Option 1</strong>" from label?</p>