docs: def tabify(text, options):
      """ tabify(text : str, options : argparse.Namespace|str) -> str
  
      >>> tabify('        (println "hello world")', '--tab=3')
       '\t\t  (println "hello world")'
  
      Replace spaces with tabs
      """
      opts = parse_options(options)
      if opts.tab_size < 1:
          return text
      else:
          tab_equiv = ' ' * opts.tab_size
          return text.replace(tab_equiv, '\t')