Connection is still open when i close the server using .Stop() about alchemy-websockets HOT 6 CLOSED

/// <summary>
/// Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.
/// </summary>
public void Dispose()
{
    Connected = false;
    UserContext.OnDisconnect();

    // close client connection
    if (Connection != null)
    {
        try
        {
            Connection.Close();
        }
        catch (Exception)
        {
            // skip
        }
    }   
}