internal Task ChangeReconnectIntervalAsync(uint reconnectInterval)
 {
     return(SendAsync(ServerSentEventsHelper.GetReconnectIntervalBytes(reconnectInterval)));
 }
 internal Task <bool> ChangeReconnectIntervalAsync(uint reconnectInterval, CancellationToken cancellationToken)
 {
     return(SendAsync(ServerSentEventsHelper.GetReconnectIntervalBytes(reconnectInterval), cancellationToken));
 }