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//0x1c bytes (sizeof)
struct _MI_SUB64K_FREE_RANGES
{
    struct _RTL_BITMAP BitMap;                                              //0x0
    struct _LIST_ENTRY ListEntry;                                           //0x8
    struct _MMVAD_SHORT* Vad;                                               //0x10
    USHORT SubListIndex;                                                    //0x14
    USHORT Hint;                                                            //0x16
    ULONG SetBits;                                                          //0x18
};