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