On

Run command. command 'stop now 1 2' from Server console this method receives (Server, 'stop'. {'now','1', '2'})

Warning

ICommandSender is NOT thread-safe. It means

Parameters

sender	is sent from background thread. If your ICommand needs main thread execution, create an issue. I will create a flag for that command.
sender	context object
cmd	first word in command
args	second and next words in command (Always not null)