code: func newDiskUsageCommand(dockerCli command.Cli) *cobra.Command {
  	var opts diskUsageOptions
  
  	cmd := &cobra.Command{
  		Use:   "df [OPTIONS]",
  		Short: "Show docker disk usage",
  		Args:  cli.NoArgs,
  		RunE: func(cmd *cobra.Command, args []string) error {
  			return runDiskUsage(dockerCli, opts)
  		},
  		Annotations: map[string]string{"version": "1.25"},
  	}
  
  	flags := cmd.Flags()
  
  	flags.BoolVarP(&opts.verbose, "verbose", "v", false, "Show detailed information on space usage")
  	flags.StringVar(&opts.format, "format", "", "Pretty-print images using a Go template")
  
  	return cmd
  }
docs: // newDiskUsageCommand creates a new cobra.Command for `docker df`