title: Rails Simple Form custom collection for select box
body: <p>Is there a way to have different value for label in select box in Simple Form with custom Collection?</p>
  
  <p>Below is an example that I have:</p>
  
  <pre><code>= f.input :hall_type, collection: ["Main", "Exhibition", "Conference", {"KnowedgeLibrary" =&gt; "Knowedge Library"}], prompt: "Choose a hall type"
  </code></pre>
  
  <p>I want <code>KnowledgeLibrary</code> to be value and <code>Knowledge Library</code> to be the label/text of the option</p>