Inheritance: extends PayPal\EBLBaseComponents\AbstractRequestType
 public function toXMLString()
 {
     $str = '';
     $str .= '<ns:SetAccessPermissionsReq>';
     if ($this->SetAccessPermissionsRequest != null) {
         $str .= '<ns:SetAccessPermissionsRequest>';
         $str .= $this->SetAccessPermissionsRequest->toXMLString();
         $str .= '</ns:SetAccessPermissionsRequest>';
     }
     $str .= '</ns:SetAccessPermissionsReq>';
     return $str;
 }