text: """Provides Tab completion when prompting users for a path."""
  import glob
  # readline module is not available on all systems
  try:
      import readline
  except ImportError:
      import certbot._internal.display.dummy_readline as readline  # type: ignore
  
  
  class Completer(object):
      """Provides Tab completion when prompting users for a path.
  
      This class is meant to be used with readline to provide Tab
      completion for users entering paths. The complete method can be
      passed to readline.set_completer directly, however, this function
      works best as a context manager. For example:
  
      with Completer():
          raw_input()
  
      In this example, Tab completion will be available during the call to
      raw_input above, however, readline will be restored to its previous
      state when exiting the body of the with statement.
  
      """
  
      def __init__(self):
          self._iter = self._original_completer = self._original_delims = None
  
      def complete(self, text, state):
          """Provides path completion for use with readline.
  
          :param str text: text to offer completions for
          :param int state: which completion to return
  
          :returns: possible completion for text or ``None`` if all
              completions have been returned
          :rtype: str
  
          """
          if state == 0:
              self._iter = glob.iglob(text + '*')
          return next(self._iter, None)
  
      def __enter__(self):
          self._original_completer = readline.get_completer()
          self._original_delims = readline.get_completer_delims()
  
          readline.set_completer(self.complete)
          readline.set_completer_delims(' \t\n;')
  
          # readline can be implemented using GNU readline, pyreadline or libedit
          # which have different configuration syntax
          if readline.__doc__ is not None and 'libedit' in readline.__doc__:
              readline.parse_and_bind('bind ^I rl_complete')
          else:
              readline.parse_and_bind('tab: complete')
  
      def __exit__(self, unused_type, unused_value, unused_traceback):
          readline.set_completer_delims(self._original_delims)
          readline.set_completer(self._original_completer)
  