title: Get a value from a parent Block
body: <p>I'm facing some difficult to accomplish this apparently easy task.</p>
  
  <p>I'm in a nested block ( suggestion.phtml ) and I want to get a value ( number of search result, and so the collection count) from a parent block ( result.phtml )</p>
  
  <p>I'm wrong or there is not an easy way here ?</p>