<?hh //strict
abstract class Page {
  abstract public function __construct(): void;
  abstract public function render(): :html;
}

<?hh //strict
abstract class Page {
  public string $Title = '';
  public array<Stringish> $Header = [];
  public array<Stringish> $Footer = [];
  abstract public function __construct(): void;
  abstract public function render(): :html;
}

Add Title, Header & Footer to Page
:new: Add Title, Header & Footer to Page
