pub unsafe extern "C" fn Esys_EC_Ephemeral(
    esysContext: *mut ESYS_CONTEXT,
    shandle1: ESYS_TR,
    shandle2: ESYS_TR,
    shandle3: ESYS_TR,
    curveID: TPMI_ECC_CURVE,
    Q: *mut *mut TPM2B_ECC_POINT,
    counter: *mut UINT16
) -> TSS2_RC