EFI_ACPI_6_0_NFIT_GUID_RAM_DISK_SUPPORTING_VIRTUAL_DISK_REGION_PERSISTENT

Undocumented in source but is binding to C. You might be able to learn more by searching the web for its name.
extern (C)
enum EFI_ACPI_6_0_NFIT_GUID_RAM_DISK_SUPPORTING_VIRTUAL_DISK_REGION_PERSISTENT = GUID(0x5CEA02C9, 0x4D07, 0x69D3, 0x26, 0x9F, 0x44, 0x96, 0xFB, 0xE0, 0x96, 0xF9);

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