diff --git a/Models/Arrival.php b/Models/Arrival.php
index 0f3a5e6..715d719 100644
--- a/Models/Arrival.php
+++ b/Models/Arrival.php
@@ -325,59 +325,4 @@ class Arrival
     {
     }
 
-    /**
-     * {@inheritdoc}
-     */
-    public function exportJson($path)
-    {
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    public function importJson($path)
-    {
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    public function exportCsv($path)
-    {
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    public function importCsv($path)
-    {
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    public function exportExcel($path)
-    {
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    public function importExcel($path)
-    {
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    public function exportPdf($path)
-    {
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    public function importPdf($path)
-    {
-    }
 }
diff --git a/Models/Article.php b/Models/Article.php
index a8e475c..5706320 100644
--- a/Models/Article.php
+++ b/Models/Article.php
@@ -407,59 +407,4 @@ class Article
     {
     }
 
-    /**
-     * {@inheritdoc}
-     */
-    public function exportJson($path)
-    {
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    public function importJson($path)
-    {
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    public function exportCsv($path)
-    {
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    public function importCsv($path)
-    {
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    public function exportExcel($path)
-    {
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    public function importExcel($path)
-    {
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    public function exportPdf($path)
-    {
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    public function importPdf($path)
-    {
-    }
 }
diff --git a/Models/CountingList.php b/Models/CountingList.php
index 84d2712..8384d43 100644
--- a/Models/CountingList.php
+++ b/Models/CountingList.php
@@ -26,59 +26,4 @@ namespace Modules\Warehousing\Models;
 class CountingList
 {
 
-    /**
-     * {@inheritdoc}
-     */
-    public function exportJson($path)
-    {
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    public function importJson($path)
-    {
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    public function exportCsv($path)
-    {
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    public function importCsv($path)
-    {
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    public function exportExcel($path)
-    {
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    public function importExcel($path)
-    {
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    public function exportPdf($path)
-    {
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    public function importPdf($path)
-    {
-    }
 }
diff --git a/Models/Shipping.php b/Models/Shipping.php
index 90876fc..6af74b4 100644
--- a/Models/Shipping.php
+++ b/Models/Shipping.php
@@ -323,59 +323,4 @@ class Shipping
     {
     }
 
-    /**
-     * {@inheritdoc}
-     */
-    public function exportJson($path)
-    {
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    public function importJson($path)
-    {
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    public function exportCsv($path)
-    {
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    public function importCsv($path)
-    {
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    public function exportExcel($path)
-    {
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    public function importExcel($path)
-    {
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    public function exportPdf($path)
-    {
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    public function importPdf($path)
-    {
-    }
 }