<virtualType name="PayflowProVaultPaymentValueHandlerPool"
             type="VaultPaymentValueHandlerPool">
    <arguments>
        <argument name="handlers" xsi:type="array">
            <item name="default" xsi:type="string">
                PayflowProVaultPaymentValueHandler
            </item>
        </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 PayflowProVaultPaymentValueHandlerPool object that it should return a VaultPaymentValueHandlerPool object.

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

• $handlers = [...items...];

<virtualType name="Magento\TestModuleFakePaymentMethod\Gateway\Config\Vault\ValueHandlerPool"
             type="VaultPaymentValueHandlerPool">
    <arguments>
        <argument name="handlers" xsi:type="array">
            <item name="default" xsi:type="string">
                Magento\TestModuleFakePaymentMethod\Gateway\Config\Vault\ConfigValueHandler
            </item>
        </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 Magento\TestModuleFakePaymentMethod\Gateway\Config\Vault\ValueHandlerPool object that it should return a VaultPaymentValueHandlerPool object.

This configuration tells the Object Manager that when a user wants a Magento\TestModuleFakePaymentMethod\Gateway\Config\Vault\ValueHandlerPool object that the following arguments should be used in the foo object's constructor.

• $handlers = [...items...];

<type name="Magento\Vault\Model\Method\Vault">
    <arguments>
        <argument name="config" xsi:type="object">
            Magento\Payment\Gateway\Config\Config
        </argument>
        <argument name="valueHandlerPool" xsi:type="object">
            VaultPaymentValueHandlerPool
        </argument>
        <argument name="vaultProvider" xsi:type="object">
            Magento\Vault\Model\Method\NullPaymentProvider
        </argument>
        <argument name="code" xsi:type="string">
            vault
        </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\Vault\Model\Method\Vault object that the following arguments should be used in the foo object's constructor.

• $config = new Magento\Payment\Gateway\Config\Config (...)
• $valueHandlerPool = new VaultPaymentValueHandlerPool (...)
• $vaultProvider = new Magento\Vault\Model\Method\NullPaymentProvider (...)
• $code = "vault";

<virtualType name="VaultPaymentValueHandlerPool"
             type="Magento\Payment\Gateway\Config\ValueHandlerPool">
    <arguments>
        <argument name="handlers" xsi:type="array">
            <item name="default" xsi:type="string">
                VaultPaymentDefaultValueHandler
            </item>
        </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 VaultPaymentValueHandlerPool object that it should return a Magento\Payment\Gateway\Config\ValueHandlerPool object.

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

• $handlers = [...items...];

<virtualType name="BraintreeVaultPaymentValueHandlerPool"
             type="VaultPaymentValueHandlerPool">
    <arguments>
        <argument name="handlers" xsi:type="array">
            <item name="default" xsi:type="string">
                BraintreeVaultPaymentValueHandler
            </item>
        </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 BraintreeVaultPaymentValueHandlerPool object that it should return a VaultPaymentValueHandlerPool object.

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

• $handlers = [...items...];

<virtualType name="BraintreePayPalVaultPaymentValueHandlerPool"
             type="VaultPaymentValueHandlerPool">
    <arguments>
        <argument name="handlers" xsi:type="array">
            <item name="default" xsi:type="string">
                BraintreePayPalVaultPaymentValueHandler
            </item>
        </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 BraintreePayPalVaultPaymentValueHandlerPool object that it should return a VaultPaymentValueHandlerPool object.

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

• $handlers = [...items...];