added method: get_hookable_instance_by_class_name

src/Plugin/HookableParent.php

@@ -23,6 +23,22 @@ trait HookableParent {
 		$this->hookable_objects[] = $hookable_object;
 	}
 
+	/**
+	 * Get hookable instance.
+	 *
+	 * @param string $class_name Class name.
+	 *
+	 * @return false|Hookable
+	 */
+	public function get_hookable_instance_by_class_name( $class_name ) {
+		foreach ( $this->hookable_objects as $hookable_object ) {
+			if ( $hookable_object instanceof $class_name ) {
+				return $hookable_object;
+			}
+		}
+		return false;
+	}
+
 	/**
 	 * Run hooks method on all hookable objects.
 	 */