TOKENP.H

The public symbol file NTKRPAMP.PDB for the original release of Windows 10 tells that the kernel is built with the TOKENP.H header at

d:\th\minkernel\ntos\se

and draws from it the following type definitions:

Line Number Type
143 struct _SEP_AUDIT_POLICY
148 struct _SEP_TOKEN_PRIVILEGES
233 struct _TOKEN

The header TOKENP.H is not known in any Device Driver Kit (DDK) or Windows Driver Kit (WDK).