revert retuen code

GraysonAstral · GraysonAstral · commit 5cba788f4bab · 2020-02-09T11:13:42.000+08:00
diff --git a/app/code/Magento/Customer/Ui/Component/Listing/AttributeRepository.php b/app/code/Magento/Customer/Ui/Component/Listing/AttributeRepository.php
@@ -156,7 +156,7 @@ protected function getOptionArray(array $options)
      * Return customer group's metadata by given group code
      *
      * @param string $code
-     * @return string null
+     * @return array | null
      */
     public function getMetadataByCode($code)
     {

Original file line number	Diff line number	Diff line change
`@@ -156,7 +156,7 @@ protected function getOptionArray(array $options)`
`156`	`156`	`* Return customer group's metadata by given group code`
`157`	`157`	`*`
`158`	`158`	`* @param string $code`
`159`		`- * @return string null`
	`159`	`+ * @return array \| null`
`160`	`160`	`*/`
`161`	`161`	`public function getMetadataByCode($code)`
`162`	`162`	`{`