IoCompletion

        pub const IoCompletion = packed struct(u16) {
            Reserved0: u1 = 0,
            MODIFY_STATE: bool = false,
            Reserved2: u14 = 0,

            pub const ALL_ACCESS: ACCESS_MASK = .{
                .STANDARD = .{ .RIGHTS = .REQUIRED, .SYNCHRONIZE = true },
                .SPECIFIC = .{ .IO_COMPLETION = .{
                    .Reserved0 = maxInt(@FieldType(IoCompletion, "Reserved0")),
                    .MODIFY_STATE = true,
                } },
            };
        }