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//0x40 bytes (sizeof)
struct _MI_SYSTEM_TRIM_STATE
{
    ULONGLONG ExpansionLock;                                                //0x0
    volatile LONG TrimInProgressCount;                                      //0x8
    struct _KEVENT PeriodicWorkingSetEvent;                                 //0x10
    ULONG TrimAllPageFaultCount[3];                                         //0x28
};