src/Body.php
public function setRecipient($recipientId)
    {
        $recipient = new Recipient();

        $recipient->setId($recipientId);

        $this->recipient = $recipient;
    }
public function setRecipient($recipientId)
    {
        $recipient = new Recipient();

        $recipient->setId($recipientId);

        $this->recipient = $recipient;
    }
Set recipient

@param int $recipientId Recipient id