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//0x28 bytes (sizeof)
struct _SEP_LOWBOX_NUMBER_MAPPING
{
    struct _EX_PUSH_LOCK Lock;                                              //0x0
    struct _RTL_BITMAP Bitmap;                                              //0x8
    struct _RTL_DYNAMIC_HASH_TABLE* HashTable;                              //0x18
    UCHAR Active;                                                           //0x20
};