MX records need ability to set priority

src/Endpoints/DNS.php

@@ -28,6 +28,7 @@ class DNS implements API
      * @param string $content
      * @param int $ttl
      * @param bool $proxied
+     * @param string $priority
      * @return bool
      */
     public function addRecord(
@@ -36,7 +37,8 @@ class DNS implements API
         string $name,
         string $content,
         int $ttl = 0,
-        bool $proxied = true
+        bool $proxied = true,
+        string $priority = ''
     ): bool {
         $options = [
             'type' => $type,
@@ -49,6 +51,10 @@ class DNS implements API
             $options['ttl'] = $ttl;
         }
 
+        if (!empty($priority)) {
+            $options['priority'] = $priority;
+        }
+
         $user = $this->adapter->post('zones/' . $zoneID . '/dns_records', [], $options);
 
         $body = json_decode($user->getBody());