VK_PHYSICAL_DEVICE_TYPE_END_RANGE

Undocumented in source but is binding to an external library. You might be able to learn more by searching the web for its name.
@nogc nothrow extern (System)
enum VK_PHYSICAL_DEVICE_TYPE_END_RANGE = VkPhysicalDeviceType.VK_PHYSICAL_DEVICE_TYPE_END_RANGE;

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