(command.CommandList
  children: [
    (command.Simple
      words: [
        {<echo>}
        {
          (command_sub
            left_token: <Id.Left_Backtick '`'>
            child: (C {<gettext>} {(DQ <'smbfs unshare is not supported'>)})
            right: <Id.Backtick_Right '`'>
          )
        }
      ]
      redirects: [(redir op:<Id.Redir_GreatAnd '1>&'> loc:(redir_loc.Fd fd:1) arg:{<2>})]
      more_env: []
      do_fork: T
    )
    (command.ControlFlow token:<Id.ControlFlow_Exit exit> arg_word:{<1>})
  ]
)