Introduce Bindable trait

src/Bindable.php

@@ -0,0 +1,8 @@
+<?php
+namespace Gt\DomTemplate;
+
+trait Bindable {
+	public function bind(iterable $data):void {
+
+	}
+}

src/Element.php

@@ -5,4 +5,5 @@
 
 class Element extends BaseElement {
 	use TemplateParent;
+	use Bindable;
 }

src/HTMLDocument.php

@@ -9,6 +9,7 @@
 
 class HTMLDocument extends BaseHTMLDocument {
 	use TemplateParent;
+	use Bindable;
 
 	protected $templateDirectory;
 

test/unit/BindableTest.php

@@ -0,0 +1,22 @@
+<?php
+namespace Gt\DomTemplate\Test;
+
+use Gt\DomTemplate\HTMLDocument;
+use Gt\DomTemplate\Test\Helper\Helper;
+use PHPUnit\Framework\TestCase;
+
+class BindableTest extends TestCase {
+	public function testBindMethodAvailable() {
+		$document = new HTMLDocument(Helper::HTML_TEMPLATES);
+		$outputTo = $document->querySelector("dl");
+
+		self::assertTrue(
+			method_exists($document, "bind"),
+			"HTMLDocument is not bindable"
+		);
+		self::assertTrue(
+			method_exists($outputTo, "bind"),
+			"Template container element (dl) is not bindable"
+		);
+	}
+}