src/Attachment.php
public function setPayload($payload)
    {
        $model = new Payload();

        if (!empty($payload['url'])) {
            $model->setUrl($payload['url']);
        }

        if (!empty($payload['is_reusable'])) {
            $model->setIsReusable($payload['is_reusable']);
        }

        if (!empty($payload['template_type'])) {
            $model->setTemplateType($payload['template_type']);
        }

        if (!empty($payload['text'])) {
            $model->setText($payload['text']);
        }

        if (!empty($payload['attachment_id'])) {
            $model->setAttachmentId($payload['attachment_id']);
        }

        if (!empty($payload['buttons'])) {
            foreach ($payload['buttons'] as $button) {
                $model->setButton($button);
            }
        }

        $this->payload = $model;
    }
public function setPayload($payload)
    {
        $model = new Payload();

        if (!empty($payload['url'])) {
            $model->setUrl($payload['url']);
        }

        if (!empty($payload['is_reusable'])) {
            $model->setIsReusable($payload['is_reusable']);
        }

        if (!empty($payload['template_type'])) {
            $model->setTemplateType($payload['template_type']);
        }

        if (!empty($payload['text'])) {
            $model->setText($payload['text']);
        }

        if (!empty($payload['attachment_id'])) {
            $model->setAttachmentId($payload['attachment_id']);
        }

        if (!empty($payload['buttons'])) {
            foreach ($payload['buttons'] as $button) {
                $model->setButton($button);
            }
        }

        $this->payload = $model;
    }
Set payload

@param Payload $payload