<?php

use Netcore\Translator\Models\Language;

// In order to stay backwards compatible, we should define this
// helper function only if it is not defined in project itself
if (!function_exists('trans_model')) {
    /**
     * @param          $row
     * @param Language $language
     * @param String $attribute
     * @return String
     */
    function trans_model($row, Language $language, $attribute = null): String
    {
        if (object_get($row, 'id')) {
            if (is_null($attribute)) {
                $model = $row->translateOrNew($language->iso_code);

                if (is_object($model)) {
                    return $model;
                }
            }

            if ($row) {
                return (string)$row->translateOrNew($language->iso_code)->$attribute;
            }
        }

        return '';
    }
}

<?php
use Netcore\Translator\Models\Language;

/**
 * @param          $row
 * @param Language $language
 * @param String $attribute
 * @return String
 */
function trans_model($row, Language $language, $attribute = null): String
{
    if (object_get($row, 'id')) {
        if (is_null($attribute)) {
            $model = $row->translateOrNew($language->iso_code);

            if (is_object($model)) {
                return $model;
            }
        }

        if ($row) {
            return (string)$row->translateOrNew($language->iso_code)->$attribute;
        }
    }

    return '';
}

--- 
+++ 
@@ -1,27 +1,32 @@
 <?php
+
 use Netcore\Translator\Models\Language;
 
-/**
- * @param          $row
- * @param Language $language
- * @param String $attribute
- * @return String
- */
-function trans_model($row, Language $language, $attribute = null): String
-{
-    if (object_get($row, 'id')) {
-        if (is_null($attribute)) {
-            $model = $row->translateOrNew($language->iso_code);
+// In order to stay backwards compatible, we should define this
+// helper function only if it is not defined in project itself
+if (!function_exists('trans_model')) {
+    /**
+     * @param          $row
+     * @param Language $language
+     * @param String $attribute
+     * @return String
+     */
+    function trans_model($row, Language $language, $attribute = null): String
+    {
+        if (object_get($row, 'id')) {
+            if (is_null($attribute)) {
+                $model = $row->translateOrNew($language->iso_code);
 
-            if (is_object($model)) {
-                return $model;
+                if (is_object($model)) {
+                    return $model;
+                }
+            }
+
+            if ($row) {
+                return (string)$row->translateOrNew($language->iso_code)->$attribute;
             }
         }
 
-        if ($row) {
-            return (string)$row->translateOrNew($language->iso_code)->$attribute;
-        }
+        return '';
     }
-
-    return '';
 }
Define trans_model only if it is not defined in project itself
