/// <summary>
/// Removes the session.
/// </summary>
/// <param name="session">The session.</param>
internal static void RemoveSession(Session session)
{
_sessions.Remove(session);
}
/// <summary>
/// Registers the session.
/// </summary>
/// <param name="session">The session.</param>
internal static void RegisterSession(Session session)
{
if (!_sessions.Contains(session)) _sessions.Add(session);
}