<type name="Magento\Catalog\Model\Indexer\Product\Price\Plugin\TableResolver">
    <arguments>
        <argument name="priceTableResolver" xsi:type="object">
            Magento\Catalog\Model\Indexer\Product\Price\PriceTableResolver\Proxy
        </argument>
        <argument name="storeManager" xsi:type="object">
            Magento\Store\Model\StoreManagerInterface\Proxy
        </argument>
        <argument name="context" xsi:type="object">
            Magento\Framework\App\Http\Context\Proxy
        </argument>
    </arguments>
</type>

This is a type configuration.

This configuration is for the base area. Base area configurations will apply to all the sub-applications.

This configuration tells the Object Manager that when a user wants a Magento\Catalog\Model\Indexer\Product\Price\Plugin\TableResolver object that the following arguments should be used in the foo object's constructor.

• $priceTableResolver = new Magento\Catalog\Model\Indexer\Product\Price\PriceTableResolver\Proxy (...)
• $storeManager = new Magento\Store\Model\StoreManagerInterface\Proxy (...)
• $context = new Magento\Framework\App\Http\Context\Proxy (...)