<type name="Klarna\Core\Model\System\Config\Source\Base">
    <arguments>
        <argument name="config" xsi:type="object">
            Klarna\Core\Config\Virtual
        </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 Klarna\Core\Model\System\Config\Source\Base object that the following arguments should be used in the foo object's constructor.

• $config = new Klarna\Core\Config\Virtual (...)

<type name="Klarna\Core\Helper\KlarnaConfig">
    <arguments>
        <argument name="config" xsi:type="object">
            Klarna\Core\Config\Virtual
        </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 Klarna\Core\Helper\KlarnaConfig object that the following arguments should be used in the foo object's constructor.

• $config = new Klarna\Core\Config\Virtual (...)

<virtualType name="Klarna\Core\Config\Virtual"
             type="Magento\Framework\Config\Data">
    <arguments>
        <argument name="reader" xsi:type="object">
            Klarna\Core\Config\Reader\Virtual
        </argument>
        <argument name="cacheId" xsi:type="string">
            klarna_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 Klarna\Core\Config\Virtual object that it should return a Magento\Framework\Config\Data object.

This configuration tells the Object Manager that when a user wants a Klarna\Core\Config\Virtual object that the following arguments should be used in the foo object's constructor.

• $reader = new Klarna\Core\Config\Reader\Virtual (...)
• $cacheId = "klarna_config";

<type name="Klarna\Kp\Model\System\Config\Source\Version">
    <arguments>
        <argument name="config" xsi:type="object">
            Klarna\Core\Config\Virtual
        </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 Klarna\Kp\Model\System\Config\Source\Version object that the following arguments should be used in the foo object's constructor.

• $config = new Klarna\Core\Config\Virtual (...)