protected function getValuesLine(array $count)
{
$values = [];
foreach ($this->colmap as $key => $name) {
if (isset($count[$key])) {
$values[] = $count[$key];
} else {
throw new \InvalidArgumentException('Attempted to print row with missing keys');
}
}
return '"' . implode('","', $values) . '"' . PHP_EOL;
}