protected function _getZappableSleepProps(&$exprops)
{
parent::_getZappableSleepProps($exprops);
if ($this->_backImageUrl === null) {
$exprops[] = "TTableStyle_backImageUrl";
}
if ($this->_horizontalAlign === null) {
$exprops[] = "TTableStyle_horizontalAlign";
}
if ($this->_cellPadding === null) {
$exprops[] = "TTableStyle_cellPadding";
}
if ($this->_cellSpacing === null) {
$exprops[] = "TTableStyle_cellSpacing";
}
if ($this->_gridLines === null) {
$exprops[] = "TTableStyle_gridLines";
}
if ($this->_borderCollapse === null) {
$exprops[] = "TTableStyle_borderCollapse";
}
}