<virtualType name="AmazonCurrencyValidator"
             type="Amazon\Payment\Gateway\Validator\CurrencyValidator">
    <arguments>
        <argument name="config" xsi:type="object">
            Amazon\Payment\Gateway\Config\Config
        </argument>
    </arguments>
</virtualType>

This is a virtual type configuration.

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

This virtualType configuration tells the Object Manager when a user wants a virtual AmazonCurrencyValidator object that it should return a Amazon\Payment\Gateway\Validator\CurrencyValidator object.

This configuration tells the Object Manager that when a user wants a AmazonCurrencyValidator object that the following arguments should be used in the foo object's constructor.

• $config = new Amazon\Payment\Gateway\Config\Config (...)