setAttribute('to', $to); } /** * Add From attribute. * * @param string $from Number to send message from */ public function setFrom($from): self { return $this->setAttribute('from', $from); } /** * Add Action attribute. * * @param string $action Action URL */ public function setAction($action): self { return $this->setAttribute('action', $action); } /** * Add Method attribute. * * @param string $method Action URL method */ public function setMethod($method): self { return $this->setAttribute('method', $method); } /** * Add StatusCallback attribute. * * @param string $statusCallback Status callback URL */ public function setStatusCallback($statusCallback): self { return $this->setAttribute('statusCallback', $statusCallback); } }