API equivalent to the command line "option confirm off"

I'm using The WinSCP .NET assembly winscpnet.dll .NET wrapper within an SSIS package. What's the API equivalent to the command line "option confirm off"? Also, how can the message boxes be disabled when running the C# code? The code I've copied is here: https://winscp.net/eng/docs/library#csharp

Thanks

Confirmations are always off in .NET assembly:
https://winscp.net/eng/docs/scriptcommand_option#net

Neither there are any message boxes.