<virtualType name="BraintreeAch"
             type="Magento\Payment\Model\Method\Adapter">
    <arguments>
        <argument name="code" xsi:type="const">
            PayPal\Braintree\Model\Ach\Ui\ConfigProvider::METHOD_CODE
        </argument>
        <argument name="valueHandlerPool" xsi:type="object">
            BraintreeAchValueHandlerPool
        </argument>
        <argument name="validatorPool" xsi:type="object">
            BraintreeAchValidatorPool
        </argument>
        <argument name="commandPool" xsi:type="object">
            BraintreeAchCommandPool
        </argument>
        <argument name="formBlockType" xsi:type="object">
            Magento\Payment\Block\Form
        </argument>
        <argument name="infoBlockType" xsi:type="string">
            PayPal\Braintree\Block\Info
        </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 BraintreeAch object that it should return a Magento\Payment\Model\Method\Adapter object.

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

• $code = PayPal\Braintree\Model\Ach\Ui\ConfigProvider::METHOD_CODE;
• $valueHandlerPool = new BraintreeAchValueHandlerPool (...)
• $validatorPool = new BraintreeAchValidatorPool (...)
• $commandPool = new BraintreeAchCommandPool (...)
• $formBlockType = new Magento\Payment\Block\Form (...)
• $infoBlockType = "PayPal\Braintree\Block\Info";