pub unsafe extern "system" fn AddCredentialsA(
    hcredentials: *const SecHandle,
    pszprincipal: PCSTR,
    pszpackage: PCSTR,
    fcredentialuse: u32,
    pauthdata: *const c_void,
    pgetkeyfn: SEC_GET_KEY_FN,
    pvgetkeyargument: *const c_void,
    ptsexpiry: *mut i64,
) -> HRESULT