VK_SAMPLER_MIPMAP_MODE_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.
nothrow @nogc extern (System)
enum VK_SAMPLER_MIPMAP_MODE_MAX_ENUM = VkSamplerMipmapMode.VK_SAMPLER_MIPMAP_MODE_MAX_ENUM;

Meta