code: def do_bash_complete(cli, prog_name):
      
      comp_words = os.environ['COMP_WORDS']
      try:
          cwords = shlex.split(comp_words)
          quoted = False
      except ValueError:  # No closing quotation
          cwords = split_args(comp_words)
          quoted = True
      cword = int(os.environ['COMP_CWORD'])
      args = cwords[1:cword]
      try:
          incomplete = cwords[cword]
      except IndexError:
          incomplete = ''
      choices = get_choices(cli, prog_name, args, incomplete)
  
      if quoted:
          echo('\t'.join(opt for opt, _ in choices), nl=False)
      else:
          echo('\t'.join(re.sub(r"""([\s\\"'()])""", r'\\\1', opt) for opt, _ in choices), nl=False)
  
      return True
docs: Do the completion for bash
  
      Parameters
      ----------
      cli : click.Command
          The main click Command of the program
      prog_name : str
          The program name on the command line
  
      Returns
      -------
      bool
          True if the completion was successful, False otherwise