public function toXMLString()
{
$str = '';
$str .= '<ns:EnterBoardingReq>';
if ($this->EnterBoardingRequest != null) {
$str .= '<ns:EnterBoardingRequest>';
$str .= $this->EnterBoardingRequest->toXMLString();
$str .= '</ns:EnterBoardingRequest>';
}
$str .= '</ns:EnterBoardingReq>';
return $str;
}
