You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: group_title.go
    path of file: ./repos/steampipe/pkg/control/controldisplay
    
    the code of the file until where you have to start completion: package controldisplay

import (
	"fmt"
	"log"

	"github.com/turbot/go-kit/helpers"
)

// There will always be a space after the title, even if 
    
func (r GroupTitleRenderer) Render() string {
	if r.width <= 0 {
		// this should never happen, since the minimum width is set by the formatter
		log.Printf("[WARN] group renderer has width of %d\n", r.width)
		return ""
	}
	// allow room for trailing space
	truncatedId := helpers.TruncateString(r.title, r.width-1)
	str := fmt.Sprintf("%s ", ControlColors.GroupTitle(truncatedId))
	return str
}