Added missing docs

src/Appwrite/Extend/PDOStatement.php

@@ -98,6 +98,14 @@ class PDOStatement extends PDOStatementNative
         return $result;
     }
 
+    /**
+     * Fetch All
+     * 
+     * @param int $fetch_style
+     * @param mixed $fetch_args
+     * 
+     * @return array|false
+     */
     public function fetchAll(int $fetch_style = PDO::FETCH_BOTH, mixed ...$fetch_args)
     {
         $result = $this->PDOStatement->fetchAll();