code: func AddPrefix(askPre, errorPre, infoPre, logPre, outputPre, runningPre, successPre, warnPre string, ui UI) *PrefixUI {
  	return &PrefixUI{
  		LogPrefix:     logPre,
  		OutputPrefix:  outputPre,
  		SuccessPrefix: successPre,
  		InfoPrefix:    infoPre,
  		ErrorPrefix:   errorPre,
  		WarnPrefix:    warnPre,
  		RunningPrefix: runningPre,
  		AskPrefix:     askPre,
  		UI:            ui,
  	}
  }
docs: //AddPrefix will wrap a UI that will prefix the message on top of ui.
  //If a prefix is set to nothing ("") then there will be no prefix for that message type.
  //Arguments are in alphabetical order.