code: public function toXML( XMLWriter $XMLWriter )
      {
          $XMLWriter->startElement( 'DadosCobranca' );
  
          parent::toXML( $XMLWriter );
  
          $XMLWriter->endElement();
      }
docs: @param  \XMLWriter $XMLWriter
  
  @throws \RodrigoPedra\ClearSaleID\Exception\RequiredFieldException