docs: def base64_b64encode(instr):
      '''
      Encode a string as base64 using the "modern" Python interface.
  
      Among other possible differences, the "modern" encoder does not include
      newline ('\\n') characters in the encoded output.
      '''
      return salt.utils.stringutils.to_unicode(
          base64.b64encode(salt.utils.stringutils.to_bytes(instr)),
          encoding='utf8' if salt.utils.platform.is_windows() else None
      )