diff --git a/DataTable/Table/AbstractTable.php b/DataTable/Table/AbstractTable.php
index cf0218a..8d3dcf6 100644
--- a/DataTable/Table/AbstractTable.php
+++ b/DataTable/Table/AbstractTable.php
@@ -63,6 +63,10 @@ abstract class AbstractTable
      */
     protected $layout;
 
+    public $formatter;
+
+    public $tableId;
+
     /**
      * @param FormFactory $formFactory
      * @param Router $router
@@ -130,7 +134,7 @@ abstract public function getUnfilteredCount();
      */
     abstract public function getFilteredCount();
 
-    private final function setDefaultOptions(OptionsResolver $resolver)
+    private function setDefaultOptions(OptionsResolver $resolver)
     {
         $resolver->setDefaults([
             'layout' => $this->layout,
diff --git a/Twig/DataTableExtension.php b/Twig/DataTableExtension.php
index 607b870..43daf5f 100644
--- a/Twig/DataTableExtension.php
+++ b/Twig/DataTableExtension.php
@@ -19,7 +19,7 @@ public function __construct(TwigRenderer $renderer)
     /**
      * {@inheritdoc}
      */
-    public function getFunctions()
+    public function getFunctions(): array
     {
         return [
             new TwigFunction('render_table', [$this, 'renderTable'], [