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: debug.go
    path of file: ./repos/arduino-cli/internal/cli/debug
    
    the code of the file until where you have to start completion: // This file is part of arduino-cli.
//
// Copyright 2020 ARDUINO SA (http://www.arduino.cc/)
//
// This software is released under the GNU General Public License version 3,
// which covers the main part of arduino-cli.
// The terms of this license can be found at:
// https://www.gnu.org/licenses/gpl-3.0.en.html
//
// You can be released from the requirements of the above licenses by purchasing
// a commercial license. Buying such a license is mandatory if you want to
// modify or otherwise use the software for commercial activities involving the
// Arduino software without disclosing the source code of your own applications.
// To purchase a commercial license, send an email to license@arduino.cc.

package debug

import (
	"context"
	"encoding/json"
	"errors"
	"os"
	"os/signal"

	"github.com/arduino/arduino-cli/commands/cmderrors"
	"github.com/arduino/arduino-cli/commands/debug"
	"github.com/arduino/arduino-cli/commands/sketch"
	"github.com/arduino/arduino-cli/internal/cli/argument
    
func (r *debugInfoResult) String() string {
	t := table.New()
	green := color.New(color.FgHiGreen)
	dimGreen := color.New(color.FgGreen)
	t.AddRow(tr("Executable to debug"), table.NewCell(r.Executable, green))
	t.AddRow(tr("Toolchain type"), table.NewCell(r.Toolchain, green))
	t.AddRow(tr("Toolchain path"), table.NewCell(r.ToolchainPath, dimGreen))
	t.AddRow(tr("Toolchain prefix"), table.NewCell(r.ToolchainPrefix, dimGreen))
	if r.SvdFile != "" {
		t.AddRow(tr("SVD file path"), table.NewCell(r.SvdFile, dimGreen))
	}
	switch r.Toolchain {
	case "gcc":
		// no options available at the moment...
	default:
	}
	t.AddRow(tr("Server type"), table.NewCell(r.Server, green))
	t.AddRow(tr("Server path"), table.NewCell(r.ServerPath, dimGreen))

	switch r.Server {
	case "openocd":
		t.AddRow(tr("Configuration options for %s", r.Server))
		openocdConf := r.ServerConfig.(*openOcdServerConfigResult)
		if openocdConf.Path != "" {
			t.AddRow(" - Path", table.NewCell(openocdConf.Path, dimGreen))
		}
		if openocdConf.ScriptsDir != "" {
			t.AddRow(" - Scripts Directory", table.NewCell(openocdConf.ScriptsDir, dimGreen))
		}
		for _, script := range openocdConf.Scripts {
			t.AddRow(" - Script", table.NewCell(script, dimGreen))
		}
	default:
	}
	if custom := r.CustomConfigs; custom != nil {
		for id, config := range custom {
			configJson, _ := json.MarshalIndent(config, "", "  ")
			t.AddRow(tr("Custom configuration for %s:", id))
			return t.Render() + "  " + string(configJson)
		}
	}
	return t.Render()
}