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: unmount.go
    path of file: ./repos/goldfish/vendor/github.com/hashicorp/vault/command
    
    the code of the file until where you have to start completion: package command

import (
	"fmt"
	"strings"

	"github.com/hashicorp/vault/meta"
)

// UnmountCommand is a Command that mounts a new mount.
type UnmountCommand struct {
	meta.Meta
}

func (c *UnmountCommand) Run(args []string) int {
    
func (c *UnmountCommand) Run(args []string) int {
	flags := c.Meta.FlagSet("mount", meta.FlagSetDefault)
	flags.Usage = func() { c.Ui.Error(c.Help()) }
	if err := flags.Parse(args); err != nil {
		return 1
	}

	args = flags.Args()
	if len(args) != 1 {
		flags.Usage()
		c.Ui.Error(fmt.Sprintf(
			"\nunmount expects one argument: the path to unmount"))
		return 1
	}

	path := args[0]

	client, err := c.Client()
	if err != nil {
		c.Ui.Error(fmt.Sprintf(
			"Error initializing client: %s", err))
		return 2
	}

	if err := client.Sys().Unmount(path); err != nil {
		c.Ui.Error(fmt.Sprintf(
			"Unmount error: %s", err))
		return 2
	}

	c.Ui.Output(fmt.Sprintf(
		"Successfully unmounted '%s' if it was mounted", path))

	return 0
}