title: @EnableBinding @deprecated as of 3.1 in favor of functional programming model
body: <p>I see that following annotations are depreciated for Spring Cloud Stream</p>
  <p><code>@Input</code>
  <code>@Output</code>
  <code>@EnableBinding</code>
  <code>@StreamListener</code></p>
  <p>Please provide examples and links to documentation as how to do it in functional way.</p>