<virtualType name="BraintreePayPalVaultFacade"
             type="Magento\Vault\Model\Method\Vault">
    <arguments>
        <argument name="config" xsi:type="object">
            BraintreePayPalVaultPaymentConfig
        </argument>
        <argument name="valueHandlerPool" xsi:type="object">
            BraintreePayPalVaultPaymentValueHandlerPool
        </argument>
        <argument name="vaultProvider" xsi:type="object">
            BraintreePayPalFacade
        </argument>
        <argument name="code" xsi:type="const">
            PayPal\Braintree\Model\Ui\PayPal\ConfigProvider::PAYPAL_VAULT_CODE
        </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 BraintreePayPalVaultFacade object that it should return a Magento\Vault\Model\Method\Vault object.

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

• $config = new BraintreePayPalVaultPaymentConfig (...)
• $valueHandlerPool = new BraintreePayPalVaultPaymentValueHandlerPool (...)
• $vaultProvider = new BraintreePayPalFacade (...)
• $code = PayPal\Braintree\Model\Ui\PayPal\ConfigProvider::PAYPAL_VAULT_CODE;