Use existing method to get all messages.

Author: polevaultweb

src/Mailtrap.php

@@ -310,13 +310,7 @@ public function seeAnAttachment($bool)
  */
  public function fetchLastMessages($number = 1)
  {
- $messages = $this->client->get("inboxes/{$this->config['inbox_id']}/messages")->getBody();
-
- if ($messages instanceof Stream) {
- $messages = $messages->getContents();
- }
-
- $messages = json_decode($messages, true);
+ $messages = $this->fetchMessages();
 
  $firstIndex = count($messages) - $number;