Function Esys_MAC 

pub unsafe extern "C" fn Esys_MAC(
    esysContext: *mut ESYS_CONTEXT,
    handle: ESYS_TR,
    handleSession1: ESYS_TR,
    optionalSession2: ESYS_TR,
    optionalSession3: ESYS_TR,
    buffer: *const TPM2B_MAX_BUFFER,
    inScheme: TPMI_ALG_MAC_SCHEME,
    outMAC: *mut *mut TPM2B_DIGEST,
) -> TSS2_RC