LayerFilters.php

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<?php
declare(strict_types=1);

namespace Magento\CatalogGraphQl\Model\Resolver;

use Magento\Framework\GraphQl\Config\Element\Field;
use Magento\Framework\GraphQl\Query\ResolverInterface;
use Magento\Framework\GraphQl\Schema\Type\ResolveInfo;

class LayerFilters implements ResolverInterface
{
    private $filtersDataProvider;

    public function __construct(
        \Magento\CatalogGraphQl\Model\Resolver\Layer\DataProvider\Filters $filtersDataProvider
    ) {
        $this->filtersDataProvider = $filtersDataProvider;
    }

    public function resolve(
        Field $field,
        $context,
        ResolveInfo $info,
        array $value = null,
        array $args = null
    ) {
        if (!isset($value['layer_type'])) {
            return null;
        }

        return $this->filtersDataProvider->getData($value['layer_type']);
    }
}