public function toXMLString()
 {
     $str = '';
     $str .= '<ns:BMCreateButtonReq>';
     if ($this->BMCreateButtonRequest != NULL) {
         $str .= '<ns:BMCreateButtonRequest>';
         $str .= $this->BMCreateButtonRequest->toXMLString();
         $str .= '</ns:BMCreateButtonRequest>';
     }
     $str .= '</ns:BMCreateButtonReq>';
     return $str;
 }
 public function toXMLString()
 {
     $str = '';
     $str .= '<urn:BMCreateButtonReq>';
     if ($this->BMCreateButtonRequest != null) {
         //prop is not a collection
         //prop is complex
         //prop is not enum
         //does not contain attribute or is attribute
         $str .= '<urn:BMCreateButtonRequest>';
         $str .= $this->BMCreateButtonRequest->toXMLString();
         $str .= '</urn:BMCreateButtonRequest>';
     }
     $str .= '</urn:BMCreateButtonReq>';
     return $str;
 }