docs: @Override
      @RequestCache
      public boolean canPrincipalRender(IAuthorizationPrincipal principal, String portletDefinitionId)
              throws AuthorizationException {
          // This code simply assumes that anyone who can subscribe to a channel
          // should be able to render it.  In the future, we'd like to update this
          // implementation to use a separate permission for rendering.
          return canPrincipalSubscribe(principal, portletDefinitionId);
      }