docs: def autofix_codeblock(codeblock, max_line_len=80,
                        aggressive=False,
                        very_aggressive=False,
                        experimental=False):
      r"""
      Uses autopep8 to format a block of code
  
      Example:
          >>> # DISABLE_DOCTEST
          >>> import utool as ut
          >>> codeblock = ut.codeblock(
              '''
              def func( with , some = 'Problems' ):
  
  
               syntax ='Ok'
               but = 'Its very messy'
               if None:
                      # syntax might not be perfect due to being cut off
                      ommiting_this_line_still_works=   True
              ''')
          >>> fixed_codeblock = ut.autofix_codeblock(codeblock)
          >>> print(fixed_codeblock)
      """
      # FIXME idk how to remove the blank line following the function with
      # autopep8. It seems to not be supported by them, but it looks bad.
      import autopep8
      arglist = ['--max-line-length', '80']
      if aggressive:
          arglist.extend(['-a'])
      if very_aggressive:
          arglist.extend(['-a', '-a'])
      if experimental:
          arglist.extend(['--experimental'])
      arglist.extend([''])
      autopep8_options = autopep8.parse_args(arglist)
      fixed_codeblock = autopep8.fix_code(codeblock, options=autopep8_options)
      return fixed_codeblock