VariationForm::getControllers

public function getControllers(): array
{
	$controllers = parent::getControllers();

	$controllers[] = [
		'name' => 'VARIATION_GRID_CONTROLLER',
		'type' => 'variation_grid',
		'config' => [
			'reloadUrl' => '/bitrix/components/bitrix/catalog.productcard.variation.grid/list.ajax.php',
			'signedParameters' => $this->getVariationGridSignedParameters(),
			'gridId' => $this->getVariationGridId(),
		],
	];
	$controllers[] = [
		'name' => 'IBLOCK_SECTION_CONTROLLER',
		'type' => 'iblock_section',
		'config' => [],
	];

	return $controllers;
}