/**
* @return \Closure
*/
protected function createZoneCalculatorsNormalizer()
{
return function (Options $options, $calculators) {
$normalized = [];
foreach ($calculators as $calculator) {
if (!$calculator instanceof ZoneCalculator) {
$calculator = new ZoneCalculator($calculator);
}
$normalized[$calculator->getName()] = $calculator;
}
return $normalized;
};
}