title: How to report parameters in Firebase Analytics Events
body: <p>I've used <code>Fabric</code> with <code>iOS</code> before where it was so easy to report custom parameters in the same analytics event in like this: </p>
  
  <pre><code>Answers.logCustomEvent(withName: "saved_border", customAttributes: ["image_index":"\(index)"])
  </code></pre>
  
  <p>Now I'm trying to do the same with <code>Firebase Events</code> but I see only event names in console (without custom parameters)
  Here my code:</p>
  
  <pre><code>Analytics.logEvent("saved_border",parameters: ["saved_image": index])
  </code></pre>
  
  <p>Is there any way creating same with <code>Firebase</code> except appending index to event name? </p>