Using HAL headers in HERO project

I would like to use eu_evt_maskWaitAndClr() HAL function to put the RISC-V core to sleep until my HWPE signals an event (job done). I am using HERO-SDK.
I tried including eu_v3.h header in my code (between #pragma omp declare target and #pragma omp end declare target), but compiler gives me fatal error: eu_v3.h: No such file or directory. Is it even posible to use headers from pulp-sdk inside hero-sdk project?

Best regards,

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