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: version.go
    path of file: ./repos/terraform/internal/command
    
    the code of the file until where you have to start completion: // Copyright (c) HashiCorp, Inc.
// SPDX-License-Identifier: BUSL-1.1

package command

import (
	"bytes"
	"encoding/json"
	"fmt"
	"sort"
	"strings"

	"github.com/hashicorp/terraform/internal/addrs"
	"github.com/hashicorp/terraform/internal/depsfile"
	"github.com/hashicorp/terraform/internal/getproviders"
)

// VersionCommand is a Command implementation prints the version.
type VersionCommand struct {
	Meta

	Version           string
	VersionPrerelease string
	CheckFunc         VersionCheckFunc
	Platform          getproviders.Platform
}

type VersionOutput struct {
	Version            string            `json:"terraform_version"`
	Platform           string            `json:"platform"`
	ProviderSelections map[string]string `json:"provider_selections"`
	Outdated           bool              `json:"terraform_outdated"`
}

// VersionCheckFunc is the callback called by the Version command to
// check if there is a new version of Terraform.
type VersionCheckFunc func() (VersionCheckInfo, error)

// VersionCheckInfo is the return value for the VersionCheckFunc callback
// and tells the Version command information about the latest version
// of Terraform.
type VersionCheckInfo struct {
	Outdated bool
	Latest   string
	Alerts   []string
}

func (c *VersionCommand) Help() string {
	helpText := `
Usage: terraform [global options] version [options]

  Displays the version of Terraform and all installed plugins

Options:

  -json       Output the version information as a JSON object.
`
	return strings.TrimSpace(helpText)
}

func (c *VersionCommand) Run(args []string) int {
	var outdated bool
	var latest string
	var versionString bytes.Buffer
	args = c.Meta.process(args)
	var jsonOutput bool
	cmdFlags := c.Meta.defaultFlagSet("version")
	cmdFlags.BoolVar(&jsonOutput, "json", false, "json")
	// Enable but ignore the global version flags. In main.go, if any of the
	// arguments are -v, -version, or --version, this command will be called
	// with the rest of the arguments, so we need to be able to cope with
	// those.
	cmdFlags.Bool("v", true, "version")
	cmdFlags.Bool("version", true, "version")
	cmdFlags.Usage = func() { c.Ui.Error(c.Help()) }
	if err := cmdFlags.Parse(args); err != nil {
		c.Ui.Error(fmt.Sprintf("Error parsing command-line flags: %s\n", err.Error()))
		return 1
	}

	fmt.Fprintf(&versionString, "Terraform v%s", c.Version)
	if c.VersionPrerelease != "" {
		fmt.Fprintf(&versionString, "-%s", c.VersionPrerelease)
	}

	// We'll also attempt to print out the selected plugin versions. We do
	// this ba
    
func (c *VersionCommand) Run(args []string) int {
	var outdated bool
	var latest string
	var versionString bytes.Buffer
	args = c.Meta.process(args)
	var jsonOutput bool
	cmdFlags := c.Meta.defaultFlagSet("version")
	cmdFlags.BoolVar(&jsonOutput, "json", false, "json")
	// Enable but ignore the global version flags. In main.go, if any of the
	// arguments are -v, -version, or --version, this command will be called
	// with the rest of the arguments, so we need to be able to cope with
	// those.
	cmdFlags.Bool("v", true, "version")
	cmdFlags.Bool("version", true, "version")
	cmdFlags.Usage = func() { c.Ui.Error(c.Help()) }
	if err := cmdFlags.Parse(args); err != nil {
		c.Ui.Error(fmt.Sprintf("Error parsing command-line flags: %s\n", err.Error()))
		return 1
	}

	fmt.Fprintf(&versionString, "Terraform v%s", c.Version)
	if c.VersionPrerelease != "" {
		fmt.Fprintf(&versionString, "-%s", c.VersionPrerelease)
	}

	// We'll also attempt to print out the selected plugin versions. We do
	// this based on the dependency lock file, and so the result might be
	// empty or incomplete if the user hasn't successfully run "terraform init"
	// since the most recent change to dependencies.
	//
	// Generally-speaking this is a best-effort thing that will give us a good
	// result in the usual case where the user successfully ran "terraform init"
	// and then hit a problem running _another_ command.
	var providerVersions []string
	var providerLocks map[addrs.Provider]*depsfile.ProviderLock
	if locks, err := c.lockedDependencies(); err == nil {
		providerLocks = locks.AllProviders()
		for providerAddr, lock := range providerLocks {
			version := lock.Version().String()
			if version == "0.0.0" {
				providerVersions = append(providerVersions, fmt.Sprintf("+ provider %s (unversioned)", providerAddr))
			} else {
				providerVersions = append(providerVersions, fmt.Sprintf("+ provider %s v%s", providerAddr, version))
			}
		}
	}

	// If we have a version check function, then let's check for
	// the latest version as well.
	if c.CheckFunc != nil {
		// Check the latest version
		info, err := c.CheckFunc()
		if err != nil && !jsonOutput {
			c.Ui.Error(fmt.Sprintf(
				"\nError checking latest version: %s", err))
		}
		if info.Outdated {
			outdated = true
			latest = info.Latest
		}
	}

	if jsonOutput {
		selectionsOutput := make(map[string]string)
		for providerAddr, lock := range providerLocks {
			version := lock.Version().String()
			selectionsOutput[providerAddr.String()] = version
		}

		var versionOutput string
		if c.VersionPrerelease != "" {
			versionOutput = c.Version + "-" + c.VersionPrerelease
		} else {
			versionOutput = c.Version
		}

		output := VersionOutput{
			Version:            versionOutput,
			Platform:           c.Platform.String(),
			ProviderSelections: selectionsOutput,
			Outdated:           outdated,
		}

		jsonOutput, err := json.MarshalIndent(output, "", "  ")
		if err != nil {
			c.Ui.Error(fmt.Sprintf("\nError marshalling JSON: %s", err))
			return 1
		}
		c.Ui.Output(string(jsonOutput))
		return 0
	} else {
		c.Ui.Output(versionString.String())
		c.Ui.Output(fmt.Sprintf("on %s", c.Platform))

		if len(providerVersions) != 0 {
			sort.Strings(providerVersions)
			for _, str := range providerVersions {
				c.Ui.Output(str)
			}
		}
		if outdated {
			c.Ui.Output(fmt.Sprintf(
				"\nYour version of Terraform is out of date! The latest version\n"+
					"is %s. You can update by downloading from https://www.terraform.io/downloads.html",
				latest))
		}

	}

	return 0
}