*/
on: ((event: 'message', handler: MessageHandler<this>) => void) &
((event: 'error', handler: ErrorHandler<this>) => void) &
((event: 'online', handler: OnlineHandler<this>) => void) &
((event: 'exit', handler: ExitHandler<this>) => void)
/**
*/
on: ((event: 'message', handler: MessageHandler<this>) => void) &
((event: 'error', handler: ErrorHandler<this>) => void) &
((event: 'online', handler: OnlineHandler<this>) => void) &
((event: 'exit', handler: ExitHandler<this>) => void)
/**