VK_FORMAT_FEATURE_FLAG_BITS_MAX_ENUM

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_FORMAT_FEATURE_FLAG_BITS_MAX_ENUM = VkFormatFeatureFlagBits.VK_FORMAT_FEATURE_FLAG_BITS_MAX_ENUM;

Meta