|hostId||Host ID associated with this connection.|
|connectionId||ID of the connection.|
|error||Error (can be cast to NetworkError for more information).|
int Total payload (in bytes) sent from start for connection.
Returns how much payload (user) bytes have been sent from start for connection (from call NetworkTransport.Connect for active connect or from connection request receiving for passive connect).
To determine the payload rate, sample this value periodically and divide the difference by the intervening time period.