title: What is a pTemplate in PrimeNG?
body: <p>I was going through the documentation of PrimeNG 4.3.0 for <code>p-tree</code> <a href="https://www.primefaces.org/primeng-4.3.0/#/tree" rel="noreferrer">here</a>, and came across this example where they are using a <code>pTemplate</code> attribute, but I am unable to understand what it does or how it works.</p>
  
  <pre><code>&lt;p-tree [value]="files"&gt;
      &lt;ng-template let-node pTemplate="default"&gt;
          &lt;input [(ngModel)]="node.label" type="text" style="width:100%"&gt;
      &lt;/ng-template&gt;
  &lt;/p-tree&gt;
  </code></pre>
  
  <p>Could someone please explain what the purpose of <code>pTemplate</code> is?</p>