title: How to get payload mime type in Mule 4
body: <p>I am trying to find out what is the payload type by printing it out using logger. I am aware that in Mule 3 you could use this <code>#[payload.getClass().getSimpleName()]</code> or <code>#[message.dataType.type]</code>.</p>
  
  <p>How to achieve this in Mule 4? I did my google search but could not find any solution.</p>