Function steamworks_sys::SteamAPI_ISteamUser_BeginAuthSession

pub unsafe extern "C" fn SteamAPI_ISteamUser_BeginAuthSession(
    self_: *mut ISteamUser, 
    pAuthTicket: *const c_void, 
    cbAuthTicket: c_int, 
    steamID: uint64_steamid
) -> EBeginAuthSessionResult