public function getSummaryColumns()
{
$summaryCols = [];
foreach ($this->summaryColumns as $column) {
$columnData = $this->schema[$column];
$summaryCols[] = ['key' => $column, 'label' => $columnData['label'], 'renderType' => empty($columnData['type']) ? 'string' : $columnData['type']];
}
return $summaryCols;
}