#ifndef _NTTP_H

// private
typedef _Function_class_(TP_IO_CALLBACK)
VOID NTAPI TP_IO_CALLBACK(
    _Inout_ PTP_CALLBACK_INSTANCE Instance,
    _Inout_opt_ PVOID Context,
    _In_ PVOID ApcContext,
    _In_ PIO_STATUS_BLOCK IoSB,
    _In_ PTP_IO Io
    );

#endif
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